NCERT Solutions for Class 9 Maths Chapter 2 Polynomials Exercise 2.2 Solutions

CBSE X Related Questions

  • 1.
    Find the missing frequencies p and q in the following frequency distribution, when sum of frequencies is 40 and mean is 19 :


      • 2.
        There are many varieties of mushrooms available in the world. One such mushroom ‘Amanita muscaria’ has a upper part which is like red cap (hemispherical) and lower part is like white stem (cylindrical). The hemispherical cap’s radius = 3 cm and cylindrical stem is 2 cm high with diameter 1.4 cm. Considering mushroom a solid object, answer the following questions:

        36(i) What is the total height of a mushroom ?


          • 3.
            PQ is tangent to the circle with centre O such that OP = 2OQ. m\(\angle\)OPQ is

              • 15\(^\circ\)
              • 60\(^\circ\)
              • 45\(^\circ\)
              • 30\(^\circ\)

            • 4.
              In a circular museum hall of radius 14 m, some statues are displayed. Statues are kept inside the inner concentric circle of radius 7 m. One such statue lying in sector OAB, is fenced along line segments OA, AP, PB and BO where P is a point on outer circle. Based on above information, answer the following questions:

              37(i) Find \(m\angle AOP\).


                • 5.
                  If \( 2 \sin A = 1 \), then the value of \( \tan A + \cot A \) is :

                    • \( \sqrt{3} \)
                    • \( \frac{4}{\sqrt{3}} \)
                    • \( \frac{\sqrt{3}}{2} \)
                    • \( 1 \)

                  • 6.
                    Determine the ratio in which the line \(2x + y = 6\) divides the line segment joining the points (1, 3) and (2, 5).

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