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Mathematics 23 Online
OpenStudy (anonymous):

f(x) = tan x (7 sin x + 3 cos x) f'(x)?

OpenStudy (anonymous):

f'(x)=(sec x)^2 * (7 sin x + 3 cos x) +tan x (7 cos x - 3 sin x)

OpenStudy (anonymous):

use the product rule and you may simplify.

OpenStudy (anonymous):

raheen 's solution verified by Mathematica.

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