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ncorrea92
 3 years ago
derivative of
cos^5 (pix13)
ncorrea92
 3 years ago
derivative of cos^5 (pix13)

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ns36
 3 years ago
Best ResponseYou've already chosen the best response.0You need to use the chain rule here: so the answer is (4 x cos^4 (pix  13)) x (sin( pix  13)) x pi.

ncorrea92
 3 years ago
Best ResponseYou've already chosen the best response.1Where did you get the 4 from?

ns36
 3 years ago
Best ResponseYou've already chosen the best response.0Oh sorry replace the 4 in front with a 5! so the first part should be ( 5cos^4(pix 13))(sin(pix  13))(pi)

ns36
 3 years ago
Best ResponseYou've already chosen the best response.0So the whole answer is what I posted above  that's not just the first part

ncorrea92
 3 years ago
Best ResponseYou've already chosen the best response.1So the (sin) shouldn't be raised to the 5?

ns36
 3 years ago
Best ResponseYou've already chosen the best response.0nope! because the first part of the chain rule is finding the derivative of (x^5), and the second is finding the derivative of (cos x), and the third part of the chain rule is finding the derivative of (pix  13).

ns36
 3 years ago
Best ResponseYou've already chosen the best response.0so you already took care of the raising to the 5 in the first part of the answer, where we have that termed raised to the 4.

ncorrea92
 3 years ago
Best ResponseYou've already chosen the best response.1Oh okay thank you. I get it now
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