Question

Find the derivative of
$\frac{ {x}^{2} - cosx }{sinx}$
​

Answer 1

Answer:

f(x) = (sin x)2 can be written as f(u) = u2 where u = sin x. The Chain Rule states that to differentiate a composite function we differentiate the outer function and multiply by the derivative of the inner function. We can use the rules cos x = sin ( /2– x) and sin x = cos( /2 – x) to find the derivative of cos x.

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Answer 2

Answer:

refer to the attachment above for ur answer

hope it helps you ^_^

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