Question

How do you find the derivative of `y=sinx*cosx`?

Answer 1

`dy/dx= cos2x`

Explanation:

We can write:

`y= sinx cosx`

As:

`y= 1/2sin2x`

Differentiating wrt `x` we get:

`dy/dx= 1/2cos2x*2`
`" "= cos2x`