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anonymous
 3 years ago
write the function in the form y=f(u) and u=g(x). then find the dy/dx as a function of x.
y= 5cos^4 x
anonymous
 3 years ago
write the function in the form y=f(u) and u=g(x). then find the dy/dx as a function of x. y= 5cos^4 x

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RadEn
 3 years ago
Best ResponseYou've already chosen the best response.1first, let u = 4x du/dx = ....

RadEn
 3 years ago
Best ResponseYou've already chosen the best response.1sorry... i didnt see ur question well it should be dw:1354847698924:dw

RadEn
 3 years ago
Best ResponseYou've already chosen the best response.1next, dw:1354848159596:dw

RadEn
 3 years ago
Best ResponseYou've already chosen the best response.1dy/dx = du/dx * dy/du , actually it's called chain's rule

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0yeah, thanks a lot. i have one more question, would you be willing to help me with me? i am kind of confused.

RadEn
 3 years ago
Best ResponseYou've already chosen the best response.1close ur question, n post it in new question
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