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Mathematics 20 Online
OpenStudy (anonymous):

find the slope of the normal to y=x+cosxy at (0,1) i dont get how to do the deriv of the cosxy

OpenStudy (anonymous):

product rule

OpenStudy (anonymous):

-ysin(xy)

OpenStudy (anonymous):

-1sin(0) = 0

OpenStudy (anonymous):

so id have to do implicit differentiation?

OpenStudy (anonymous):

i just did it for you

OpenStudy (anonymous):

take the derivative, then plug in the values for x and y into your calculator and you should get 0

OpenStudy (anonymous):

get it?

OpenStudy (anonymous):

i think so

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