KCET 2023 Mathematics Question Paper: Download Set B3 Question Paper with Answer Key PDF

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Shivam Yadav

Updated on - Nov 15, 2025

KCET 2023 Mathematics Question Paper Set B3 is available here for download. KCET 2023 Question Paper May 20 Shift 2 2:30 PM to 3:50 PM was conducted for Mathematics Paper. KCET 2023 Question Paper included 60 MCQ-based questions in total. Each candidate will be awarded +1 for correct answers, however, there will be no negative marking for incorrect responses. Students got 80 minutes to attempt KCET 2023 Mathematics Question Paper.

KCET 2023 Mathematics Question Paper with Answer Key PDF Set B3

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KCET 2023 Mathematics Questions with Solutions

Question 1:

A line passes through (2, 2) and is perpendicular to the line 3x+y = 3. Its y-intercept is:

  • (A) 1
  • (B) 4/3
  • (C) 1/3
  • (D) 2/3

Question 2:

The distance between the foci of a hyperbola is 16 and its eccentricity is √2. Its equation is:

  • (A) 2x² - 3y² = 7
  • (B) y² - x² = 32
  • (C) x² - y² = 32
  • (D) x²/4 - y²/9 = 1

Question 3:

If limx→0 (sin(2+x)-sin(2-x))/x = A cos B, then the values of A and B respectively are:

  • (A) 2, 1
  • (B) 1, 1
  • (C) 2, 2
  • (D) 1, 2

Question 4:

If n is even and the middle term in the expansion of (x² + 1/x)" is 924x6, then n is equal to:

  • (A) 12
  • (B) 8
  • (C) 10
  • (D) 14

Question 5:

The n-th term of the series 1 + 1/7 + 5/49 + 13/343 + ... is:

  • (A) (2n-1)/7n
  • (B) (2n+1)/7n
  • (C) (2n-1)/7n-1
  • (D) (2n+1)/7n-1

Question 6:

If p(1/q + 1/r), q(1/r + 1/p), r(1/p + 1/q) are in A.P., then p, q, r are:

  • (A) In A.P.
  • (B) Not in G.P.
  • (C) Not in A.P.
  • (D) In G.P.

Question 7:

Let f : R → R be defined by f(x) = 3x² - 5 and g : R → R by g(x) = x/(x²+1), then g o f is:

  • (A) (3x² - 5)/(9x4+30x²+26)
  • (B) (3x² - 5)/(9x4+30x²+2)
  • (C) (3x² - 5)/(9x4-30x²+26)
  • (D) (3x² - 5)/(9x4-6x²+26)

Question 8:

Let the relation R be defined in N by aRb if 3a + 2b = 27. Then R is:

  • (A) {(1, 12), (3, 9), (5, 6), (7, 3), (9,0)}
  • (B) {(2, 1), (9,3), (6, 5), (3, 7)}
  • (C) {(1, 12), (3, 9), (5, 6), (7,3)}
  • (D) {(0, 27), (1, 12), (3, 9), (5, 6), (7,3)}

Question 9:

Let f(x) = sin 2x + cos 2x and g(x) = x² – 1, then g(f(x)) is invertible in the domain:

  • (A) x ∈ [-π/2, π/2]
  • (B) x ∈ [0, π]
  • (C) x ∈ [-π/4, π/4]
  • (D) x ∈ [-π, π]

Question 10:

The contrapositive of the statement "If two lines do not intersect in the same plane then they are parallel." is:

  • (A) If two lines are not parallel, then they do not intersect in the same plane.
  • (B) If two lines are parallel, then they do not intersect in the same plane.
  • (C) If two lines are not parallel, then they intersect in the same plane.
  • (D) If two lines are parallel, then they intersect in the same plane.

Question 11:

The mean of 100 observations is 50 and their standard deviation is 5. Then the sum of squares of all observations is:

  • (A) 250000
  • (B) 255000
  • (C) 50000
  • (D) 252500

Question 12:

Let f: R → R and g : [0,∞) → R be defined by f(x) = x² and g(x) = √x. Which one of the following is not true?

  • (A) (g o f)(2) = 2
  • (B) (g o f)(-2) = 2
  • (C) (g o f)(4) = 4
  • (D) (f o g)(4) = 4

Question 13:

If A and B are two matrices such that AB = B and BA = A, then A² + B² is:

  • (A) AB
  • (B) 2BA
  • (C) A + B
  • (D) 2AB

Question 14:

If A = [[2-k, 2], [1, 3-k]] is a singular matrix, then the value of 5k – k² is equal to:

  • (A) -4
  • (B) 6
  • (C) 4
  • (D) -6

Question 15:

The area of a triangle with vertices (-3,0), (3, 0), (0,k) is 9 square units, the value of k is:

  • (A) 6
  • (B) 3
  • (C) 9
  • (D) -9

Question 16:

If Δ = |[1, a, a²], [1, b, b²], [1, c, c²]| and Δ1 = |[1, a, a²], [1, b, b²], [1, c, c²]| , then:

  • (A) Δ1 ≠ Δ
  • (B) Δ1 = -Δ
  • (C) Δ1 = Δ
  • (D) Δ1 = 3Δ

Question 17:

If sin-1(2α/(1+α²)) + cos-1((1-α²)/(1+α²)) = tan-1(2x/(1-x²)), where α, x ∈ (0,1), then the value of x is:

  • (A) 2α/(1+α²)
  • (B) 2α/(1-α²)
  • (C) 0
  • (D) α

Question 18:

The value of cot-1((√(1-sinx) + √(1+sinx))/(√(1-sinx) - √(1+sinx))) where x ∈ (0, π/2) is:

  • (A) π/4 - x/2
  • (B) π/2 - x/2
  • (C) x/2
  • (D) x - π

Question 19:

If x[3 2] + y [1 -1] = [15 5], then the value of x and y are:

  • (A) x = -4, y = -3
  • (B) x = -4, y = 3
  • (C) x = 4, y = 3
  • (D) x = 4, y = -3

Question 20:

If the function is f(x) = 1/(x+2), then the point of discontinuity of the composite function y = f(f(x)) is:

  • (A) -5/2
  • (B) 1/2
  • (C) 5/2
  • (D) -1/2

Question 21:

If y = a sin x + b cos x, then y² + (dy/dx)² is a:

  • (A) function of x and y
  • (B) constant
  • (C) function of x
  • (D) function of y

Question 22:

If f(x) = 1 + nx + (n(n-1)/2)x² + (n(n-1)(n-2)/6)x³ + ..., then f"(1) =:

  • (A) n(n - 1)2n
  • (B) 2nn-1
  • (C) n(n - 1)2n-2
  • (D) n(n - 1)2

Question 23:

If A = [[1, tan(α/2)], [-tan(α/2), 1]] and AB = I, then B =:

  • (A) cos²(α/2) * I
  • (B) sin²(α/2) * A
  • (C) cos²(α/2) * AT
  • (D) cos²(α/2) * A

Question 24:

If u = sin-1(2x/(1+x2)) and v = tan-1(2x/(1-x2)), then du/dv is:

  • (A) (1-x2)/(1+x2)
  • (B) 1
  • (C) -1
  • (D) 2

Question 25:

The function f(x) = cot x is discontinuous on every point of the set:

  • (A) {x = (2n+1)π/2, n ∈ Z}
  • (B) {x = nπ/2, n ∈ Z}
  • (C) {x = nπ, n ∈ Z}
  • (D) {x = 2nπ, n ∈ Z}

Question 26:

A particle moves along the curve x²/16 + y²/4 = 1. When the rate of change of the abscissa is 4 times that of its ordinate, then the quadrant in which the particle lies is:

  • (A) III or IV
  • (B) II or III
  • (C) I or III
  • (D) II or IV

Question 27:

An enemy fighter jet is flying along the curve given by y = x² + 2. A soldier is placed at (3,2) and wants to shoot down the jet when it is nearest to him. Then the nearest distance is:

  • (A) 2 units
  • (B) √5 units
  • (C) √3 units
  • (D) √6 units

Question 28:

Evaluate the integral ∫28 (5√(10-x))/(5√x + 5√(10-x)) dx:

  • (A) 4
  • (B) 3
  • (C) 5
  • (D) 6

Question 29:

Evaluate the integral ∫ √(cosec x - sin x) dx:

  • (A) 2√sin x + C
  • (B) (2/√sin x) + C
  • (C) √sin x + C
  • (D) (√sin x)/2 + C

Question 30:

If f(x) and g(x) are two functions with g(x) = x - 1/x³ and f o g(x) = x3 - 1/x3, then f'(x) =:

  • (A) x² - 1/x4
  • (B) 1 - 1/x²
  • (C) 3x² + 3/x4
  • (D) 3x² + 1/x4

Question 31:

A circular plate of radius 5 cm is heated. Due to expansion, its radius increases at the rate of 0.05 cm/sec. The rate at which its area is increasing when the radius is 5.2 cm is:

  • (A) 5.05π cm²/sec
  • (B) 0.52π cm²/sec
  • (C) 5.2π cm²/sec
  • (D) 27.4π cm²/sec

Question 32:

The distance s in meters traveled by a particle in t seconds is given by s = (2t3/3) - 18t + 5/3. The acceleration when the particle comes to rest is:

  • (A) 12 m/sec²
  • (B) 18 m/sec²
  • (C) 3 m/sec²
  • (D) 10 m/sec²

Question 33:

Evaluate the integral ∫0π (x tan x)/(sec x - csc x) dx:

  • (A) π/2
  • (B) π/7
  • (C) π/4
  • (D) π/3

Question 34:

Evaluate the integral ∫ √(5 - 2x + x²) dx:

  • (A) (x-1)/2 * √(5 - 2x + x²) + 2log(|x - 1| + √(5 - 2x + x²)) + C
  • (B) (x/2) * √(5 - 2x + x²) + 2log(|x - 1| + √(5 - 2x + x²)) + C
  • (C) (x/2) * √(5 - 2x + x²) + 2log(|x + 1| + √(x² + 2x + 5)) + C
  • (D) (x/2) * √(5 - 2x + x²) + 4log(|x + 1| + √(x² - 2x + 5)) + C

Question 35:

Evaluate the integral 1/(1+3 sin²x + 8 cos² x) dx

  • (A) (1/6)tan-1((2tanx)/3) + C
  • (B) (1/3)tan-1((2tanx)/3) + C
  • (C) (1/4)tan-1((2tanx)/3) + C
  • (D) (1/2)tan-1((2tanx)/3) + C

Question 36:

Evaluate the integral ∫-20 (x³ + 3x² + 3x + 3 + (x + 1)cos(x + 1)) dx:

  • (A) 4
  • (B) 1
  • (C) 0
  • (D) 3

Question 37:

The degree of the differential equation 1 + (dy/dx)² + (d²y/dx²)² = √((d³y/dx³)² + 1) is:

  • (A) 1
  • (B) 2
  • (C) 6
  • (D) 3

Question 38:

If |a + b| = |a – b|, then a and b are:

  • (A) a and b are coincident.
  • (B) Inclined to each other at 60°.
  • (C) a and b are perpendicular.
  • (D) a and b are parallel.

Question 39:

The component of î in the direction of the vector i + j + 2k is:

  • (A) 6√6
  • (B) √6/6
  • (C) √6
  • (D) 6

Question 40:

In the interval (0, π/2), the area lying between the curves y = tan x and y = cot x and the X-axis is:

  • (A) 4log 2 sq. units
  • (B) log 2 sq. units
  • (C) 3log 2 sq. units
  • (D) 2log 2 sq. units

Question 41:

The area of the region bounded by the line y = x + 1, and the lines x = 3 and x = 5 is:

  • (A) 11/2 sq. units
  • (B) 7 sq. units
  • (C) 10 sq. units
  • (D) 4 sq. units

Question 42:

If a curve passes through the point (1,1) and at any point (x,y) on the curve, the product of the slope of its tangent and x-coordinate of the point is equal to the y-coordinate of the point, then the curve also passes through the point:

  • (A) (-1,2)
  • (B) (√3,0)
  • (C) (2,2)
  • (D) (3,0)

Question 43:

The length of perpendicular drawn from the point (3, -1, 11) to the line (x-2)/2 = (y-2)/3 = (z-3)/4 is:

  • (A) √33
  • (B) √53
  • (C) √66
  • (D) √29

Question 44:

The equation of the plane through the points (2,1,0), (3, 2, -2), and (3, 1, 7) is:

  • (A) 6x – 3y + 2z - 7 = 0
  • (B) 7x - 9y - z - 5 = 0
  • (C) 3x - 2y + 6z - 27 = 0
  • (D) 2x – 3y + 4z – 27 = 0

Question 45:

The point of intersection of the line (x+1)/3 = (y+3)/3 = (z+2)/2 with the plane 3x + 4y + 5z = 10 is:

  • (A) (2, 6, -4)
  • (B) (2, 6, 4)
  • (C) (-2, 6, -4)
  • (D) (2, -6, -4)

Question 47:

If |a × b|² + |a · b|² = 144 and |a| = 4, then |b| is equal to:

  • (A) 8
  • (B) 4
  • (C) 12
  • (D) 3

Question 48:

If a + 2b + 3c = 0 and (a × b) + (b × c) + (c × a) = λ(b × c), then the value of λ is equal to:

  • (A) 4
  • (B) 6
  • (C) 2
  • (D) 3

Question 49:

If a line makes an angle of π/3 with each X and Y axis, then the acute angle made by the Z-axis is:

  • (A) π/2
  • (B) π/4
  • (C) π/6
  • (D) π/3

Question 50:

Let A = {x,y,z,u} and B = {a,b}. A function f : A → B is selected randomly. The probability that the function is an onto function is:

  • (A) 5/8
  • (B) 3/5
  • (C) 3/8
  • (D) 1/8

Question 51:

The shaded region in the figure given is the solution of which of the inequalities?

figure

  • (A) x + y ≥ 7, 2x - 3y + 6 ≥ 0, x ≥ 0, y ≥ 0
  • (B) x + y ≤ 7, 2x - 3y + 6 ≤ 0, x ≥ 0, y ≥ 0
  • (C) x + y ≤ 7, 2x - 3y + 6 ≥ 0, x ≥ 0, y ≥ 0
  • (D) x + y ≥ 7, 2x - 3y + 6 ≤ 0, x ≥ 0, y ≥ 0

Question 52:

If A and B are events such that P(A) = 1/4, P(A∩B) = 1/6, and P(B|A) = 2/3, then P(B) is:

  • (A) 2/3
  • (B) 1/2
  • (C) 1/6
  • (D) 1/3

Question 53:

A bag contains 2n + 1 coins. It is known that n of these coins have heads on both sides, whereas the other n+1 coins are fair. One coin is selected at random and tossed. If the probability that the toss results in heads is 31/42, then the value of n is:

  • (A) 8
  • (B) 10
  • (C) 5
  • (D) 6

Question 54:

The value of (sin² 14° sin² 66°)/(sin² 66° tan 135° tan 14°) is:

  • (A) 1
  • (B) 2
  • (C) -1
  • (D) 0

Question 55:

The modulus of the complex number ((1+i)²(1+3i))/((2 - 6i)(2 – 2i)) is:

  • (A) 1/√2
  • (B) √2
  • (C) 1/√2
  • (D) 1/2

Question 56:

Given that a, b, and x are real numbers and a < b, x < 0, then:

  • (A) a/x < b/x
  • (B) a/x < b/x
  • (C) a/x > b/x
  • (D) a/x ≥ b/x

Question 57:

Ten chairs are numbered as 1 to 10. Three women and two men wish to occupy one chair each. First the women choose the chairs marked 1 to 6, then the men choose the chairs from the remaining. The number of possible ways is:

  • (A) 6C3 × 4P2
  • (B) 6P3 × 4C2
  • (C) 6C3 × 4C2
  • (D) 6P3 × 4P2

Question 58:

Which of the following is an empty set?

  • (A) {x : x² - 9 = 0, x ∈ R}
  • (B) {x : x² = x + 2, x ∈ R}
  • (C) {x : x² - 1 = 0, x ∈ R}
  • (D) {x : x² + 1 = 0, x ∈ R}

Question 59:

If f(x) = ax + b, where a and b are integers, f(-1) = -5 and f(3) = 3, then a and b are respectively:

  • (A) 0, 2
  • (B) 2, 3
  • (C) -3, -1
  • (D) 2, -3

Question 60:

The value of log10 tan 1° + log10 tan 2° + log10 tan 3° + ⋅⋅⋅ + log10 tan 89° is:

  • (A) ∞
  • (B) 1
  • (C) 0
  • (D) 3


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