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Leigh A.

asked • 10/16/13

Urgent! Please help me! I have an exam in two days and I really need help with these questions. Please explain the steps and answers as thoroughly as possible.

1. Find the derivative f'(x).
(a) f(x)=xexcosx
(b) f(x)=secxtanx
(c) f(x)=sinx/1+cosx
 
2. Let g(x) be a differentiable function such that g(0)=2 and g'(0)=3.
(a) f(x)=(g(x))3
(b) f(x)=g(7x)
 
3. If h(t)=300+12sin(t/2), find h"(pi/3).
 
4. Find the derivative f'(x).
(a) f(x)=(4-2x-3x2)-5
(b) f(x)=x(square root of 1+x2)
(c) f(x)=cos2(x2)
 
5. Find the derivative f'(x).
(a) f(x)=lnx/x
(b) f(x)=arctan(ex)
(c) f(x)=xlnx

2 Answers By Expert Tutors

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Andre W. answered • 10/16/13

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Jeff K. answered • 05/22/20

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