If the function y=f(x) satisfies `f'(x)+f(x)cotx- 2 cosx=0`,`f(pi/2)=1` then `f(pi/3)` is equal to

A polynomial function f(x) satisfies f(x)f((1)/(x))-2f(x)+2f((1)/(x));x!=0 and f(2)=18 ,then f(3) is equal to

If the function f(x) satisfies lim_(x to 1) (f(x)-2)/(x^(2)-1)=pi , then lim_(x to 1)f(x) is equal to

If f(x)=|cosx-sinx| , then f'(pi/2) is equal to

If f(x) = |cosx| , then f'(pi/4) is equal to "……."

If f(x) = |cosx| , then f'(pi/4) is equal to "……."

If f(x)=(2-3cosx)/(sinx) , then f'((pi)/(4)) is equal to

Function f satisfies the relation f(x)+2f((1)/(1-x))=x AA x in R-{1,0} then f(2) is equal to

In the function f(x) satisfies lim_(xto1)(f(x)-2)/(x^(2)-1)=pi evaluate lim_(xto1)f(x) .