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Mathematics 8 Online
OpenStudy (anonymous):

f(x)= sqrt(9 + sqrt(7x)) What is f'(x) ?

OpenStudy (anonymous):

i tried using the chain rule but i think i got the wrong answer or at least i'm not sure how to simplify 1/2(9 + 7x^(1/2))^(-1/2) * (7/2x)^(-1/2)

OpenStudy (irishboy123):

bit right at end looks odd. maybe i am just reading it wrong. |dw:1425759769625:dw|

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