I would like help with these homework questions please and thank you.

4: (5pts) If you want to locate where a function has a sharp corner, you need to make use of a) the integral b) the related rate concept C) the limit d) the derivative Page 1/2 5: (5pts) If you want to locate where a function is discontinuous, you need to make use of a) the limit b) the integral c) the related rate concept d) the optimization concept 4: (10pts) Evaluate lim - -x' + 2x x-2 x - 4x+4 5: (10pts) Find the derivative of tan (elx ). 7x3 6: (10pts) Find the slope of the tangent line to the graph of f (x) = - - at x = 2. (x+ 1 ) (x-5) 7: (14pts) Find the area under the graph of f(x)= from x =1to x =4. Vx sin x 8: (14pts) Given f(x) = edx. Find f'(x). 9: (16pts) Evaluate sec- (1/ x) dx. x 2 Page 2/2