Q11 of 26 Page 1

If and find at

Given: x = a sin 2t(1 + cos 2t) and y = b cos 2t(1 – cos 2t)



x = a sin 2t(1 + cos 2t)


Differentiating both sides with respect to t:
















y = b cos 2t(1 – cos 2t)


Differentiating both sides with respect to t:

















Now,






More from this chapter

All 26 →
9

In a game, a man wins ₹ 5 for getting a number greater than 4 and loses ₹ 1 otherwise, when a fair die is thrown. The man decided to throw a die thrice but to quit as and when he gets a number greater than 4. Find the expected value of the amount he wins/loses.

OR


A bag contains 4 balls. Two balls are drawn at random (without replacement) and are found to be white. What is the probability that all balls in the bag are white?

 10

Differentiate with respect to x.

OR


If prove that

12

The equation of tangent at (2, 3) on the curve is Find the values of a and b.

 13

Find: