Question

y=cos^-1(3x+4√1-x^2)/5
find dy/dx ?

Answer 1

We use a substitution like:

$x=\sin \theta$


Then, we simplify the problem, and finally use the identity:

cos A cos B + sin A sin B = cos (A-B)


Then the whole problem simplifies.

The complete answer is in the image.


Hope it helps,
Purva
Brainly Community

Answer 2

Answer:

Find dy

dx, if y = cos−1

1 − x

2

1 + x

2