Differentiate:
xn cot x
To find: Differentiation of xn cot x
Formula used: (i) (uv)′ = u′v + uv′ (Leibnitz or product rule)
(ii)
(iii)
Let us take u = xn and v = cotx
Putting the above obtained values in the formula :-
(uv)′ = u′v + uv′
(xn cotx)’ = nxn-1× cotx + xn× -cosec2x
= nxn-1cotx - xncosec2x
= xn (nx-1cotx - cosec2x)
Ans) xn (nx-1cotx - cosec2x)