The following applies:
90°
180°
270°
16 (a) step wise anyone?
1 answer:
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Answer:
see explanation
Step-by-step explanation:
Differentiate using the product rule
Given y = f(x)g(x), then
= f(x). g'(x) + g(x). f'(x)
here f(x) = ⇒ f'(x) =
g(x) = cosx ⇒ g'(x) = - sinx
Hence
=
(- sinx) + cosx
= cosx -
sinx