Question

differentiation of pls urjunt y=x3+1/cos x​

Answer 1

The differential of cosx^ 3 wrt of x.

Well this is easy we only has to follow chain rule.

Let's start

Step 1 : first find differential of cosx , i.e

d/dx (cosx) =-sinx.

Step 2: find the differential of x^3 which will be 3x^2.

Now just multiple the results we get in step 1. & 2.

Hence, d/dx (cosx^3) = 3x^2(cosx^3).

Give thanks if you find helpful.