Find the derivative for questions 1-5. Simplify as needed. 1) y=ln- ex 1+e* 2) y = esinx 3) x = x-y x+y 4) x=y+2y+3y 7) y = lim 1+ , y = (1+1)* x+xo 5) y = sin(3x) For Problems 6 and 7, evaluate the limits (Use L'Hopital's Rule). 6) y=lim- x0 cos 2x cos x sin x