Find derivative:

Problem 6 (a)

http://ocw.mit.edu/courses/mathematics/18-01-single-variable-calculus-fall-2005/exams/ocw01f05exam1sol.pdf

Question

Find derivative:

Problem 6 (a)

http://ocw.mit.edu/courses/mathematics/18-01-single-variable-calculus-fall-2005/exams/ocw01f05exam1sol.pdf

anonymous · Answer

$$ y = \frac {(e^x-e^{-x})} {(e^x+e^{-x})}$$

turingtest · Answer

do you know the quotient rule?

anonymous · Answer

use logarithmic diff..it would be simpler..

anonymous · Answer

yes, I am getting a different answer from solutions, think it has an error

experimentx · Answer

$ y = \tanh x $

turingtest · Answer

oh yeah, if they know hyperbolic trig yet this is easy

experimentx · Answer

australopithecus · Answer

They probably want you to use quotient rule 

your function is

f(x)/g(x)

The quotient rule is

( f'(x)*g(x) - g'(x)f(x) )/( g(x) )^(2)

experimentx · Answer

anonymous · Answer

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