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1. If x = at ^(2) , y = 2 at then (dy)...

1. If ` x = at ^(2) , y = 2 at ` then `(dy)/(dx) at t =1` is A
2 If `x =cos theta, y = sin theta ` then `(dy)/(dx) at theta = (pi)/(4) is B`
3 If `x =1 - cos theta, y = sin theta ,` then `(dy )/(dx) at theta = (pi)/(6) is C`
4 If `x = log sin theta, y = tan theta ` then ` (dy)/(dx) at theta = (pi)/(4)` is D.
The ascending order of A,B,C,D is

A

A,B,C,D

B

A,B,D,C

C

B,A,D,C

D

D,C,B,A

Text Solution

Verified by Experts

The correct Answer is:
C
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