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Mathematics 17 Online
OpenStudy (anonymous):

Help! how to differentiate y = u (x^-1) (cos x) ?

OpenStudy (anonymous):

what is u?

OpenStudy (anonymous):

do u want dy/dx?

OpenStudy (anonymous):

u is also another fucntion, just like x, can just proceed with product rule of 3 terms to differentiate?

OpenStudy (anonymous):

then y is a function of two variables, u and x,isn't?

OpenStudy (anonymous):

we can find the partial derivative

OpenStudy (anonymous):

ok THANKS!

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