NCERT Solutions for Class 12 Maths Chapter 4 Determinants Exercise 4.6

Jasmine Grover logo

Jasmine Grover

Education Journalist | Study Abroad Strategy Lead

NCERT Solutions for Class 12 Maths Chapter 4 Determinants Exercise 4.6 is given in this article with a detailed explanation. Chapter 4 Determinants Exercise 4.6 covers concepts of applications of determinants and matrices and finding the solution of a given system of linear equations using an inverse of a matrix.

Download PDF NCERT Solutions for Class 12 Maths Chapter 4 Exercise 4.6

Check out solutions of Class 12 Maths NCERT solutions chapter 4 Determinants Exercise 4.6

Read More: NCERT Solutions For Class 12 Mathematics Chapter 4 Determinants

Check out other exercise solutions of Class 12 Maths Chapter 4 Determinants

Class 12 Maths Chapter 4 Determinants Topics:

CBSE Class 12 Maths Study Guides:

CBSE CLASS XII Related Questions

  • 1.

    Smoking increases the risk of lung problems. A study revealed that 170 in 1000 males who smoke develop lung complications, while 120 out of 1000 females who smoke develop lung related problems. In a colony, 50 people were found to be smokers of which 30 are males. A person is selected at random from these 50 people and tested for lung related problems. Based on the given information answer the following questions: 

    (i) What is the probability that selected person is a female? 
    (ii) If a male person is selected, what is the probability that he will not be suffering from lung problems? 
    (iii)(a) A person selected at random is detected with lung complications. Find the probability that selected person is a female. 
    OR 
    (iii)(b) A person selected at random is not having lung problems. Find the probability that the person is a male. 
     


      • 2.
        Find the domain of \(p(x)=\sin^{-1}(1-2x^2)\). Hence, find the value of \(x\) for which \(p(x)=\frac{\pi}{6}\). Also, write the range of \(2p(x)+\frac{\pi}{2}\).


          • 3.
            If \[ P = \begin{bmatrix} 1 & -1 & 0 \\ 2 & 3 & 4 \\ 0 & 1 & 2 \end{bmatrix} \quad \text{and} \quad Q = \begin{bmatrix} 2 & 2 & -4 \\ -4 & 2 & -4 \\ 1 & -1 & 5 \end{bmatrix} \] find \( QP \) and hence solve the following system of equations using matrix method:
            \[ x - y = 3,\quad 2x + 3y + 4z = 13,\quad y + 2z = 7 \]


              • 4.

                The probability of hitting the target by a trained sniper is three times the probability of not hitting the target on a stormy day due to high wind speed. The sniper fired two shots on the target on a stormy day when wind speed was very high. Find the probability that 
                (i) target is hit. 
                (ii) at least one shot misses the target. 


                  • 5.

                    A rectangle of perimeter \(24\) cm is revolved along one of its sides to sweep out a cylinder of maximum volume. Find the dimensions of the rectangle. 


                      • 6.

                        A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following: 

                        (i) Express \(y\) as a function of \(x\) from the given equation of ellipse. 
                        (ii) Integrate the function obtained in (i) with respect to \(x\). 
                        (iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration. 
                        OR 
                        (iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\). 
                         

                          CBSE CLASS XII Previous Year Papers

                          Comments


                          No Comments To Show