If `f(x)=|sinx-|cosx||,` then the value of `f^(')(x)` at `x=(7pi)/6` is

If f(x)=|sinx|+|cosx|, then the value f(x)^'a tx=(7pi)/6 is (a)positive (b) (1-sqrt(3))/2 (c)0 (d) none of these

If f (x) =|sin x-|cos x ||, then f '((7pi)/(6))=

The value of f(x)=sinx+cosx at x=45^@ is

If f(x) = |sin x - cosx| , find f' ( pi//6)

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

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

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

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

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