1. Also need help with this questions: If (x)=2x(sinx+cosx), find f'(x)= f'(pi/2)= Write the equation of the line tangent to f(x) at x=pi/2.

> Next question You can retry this question below Given that f(c) = ch(2) h( - 1) = 2 h'( - 1) = 5 Calculate f'( - 1). 19 X Hint. Use the product milesadthe power aug