Question

What is the derivative of tan45.tanx ?

Answer 1

If you mean the derivative of `tg(45)*tg(x)` then

Explanation:

the derivative would be

`tg(45)*d/dxtg(x)`

`=1*1/cos^2(x)=1/cos^2(x)`

Since `tg(45)` is a constant you don't calculate the derivative of it