Find the derivative of the function
1.) f(x)=sqrt(cosx+sinx)
f(x)= (cosx+sinx)^1/2
f'(x)= 1/2(cosx+sinx)^-1/2 d/dx (cosx+sinx)
= ???
2.) f(x)=e^(tanx+secx)
f'(x)=e^(tanx+secx) 。d/dx(tanx+secx)
=???
3.) f(x)= ln(sin^-1 (x))
Find dy/dx by implicit differentation
1.) x sec(y)=ln(sinx)
The text in the red is what i got so far..then i got stuck..can anyone help me?
Perhaps you might have forgotten to write it down in the lecture or the book doesn't mention it in any way Just have a look at this:
World Web Math: Rules of differentiation