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Find (dy)/(dx) if y=cos(a cos x+bsin x)...

Find (dy)/(dx) if
y=cos(a cos x+bsin x)

Text Solution

Verified by Experts

y=cos(acos x+bsin x)
`thereforedy/dx=d/dx(cos(acos x+bsin x))`
`=-sin(acos x + bsin x).d/dx(acosx+bsinx)`
`=-sin(acosx+bsinx)(-asinx+bcosx)`
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