1.

If y=tan^-1(cotx)+cot^-1(tanx), find (dy)/dx.

Answer»

SOLUTION :`y=tan^-1(COTX)+cot^-19tanx)=tan^-1tan(pi/2-x)+cot^-1cot(pi/2-x)=pi/2-x+pi/2-x=pi-2xrArr(DY)/dx=-2`


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