Show that the function `f(x)=|sinx+cosx|` is continuous at `x=pi` .

Show that the function f(x)= |sinx + cos x| is continuous at x= pi

The function f(x)=sinx+cosx will be

The function f(x)=(sinx)/(sinx-cosx) is discontinuous at -

Show that the function defined by f(x) = |cosx| is a continuous function.

Show that the function f(x) defined by f(x)=sin(cosx) is a continuous function .

Show that the function f(x)=cot^(-1)(sinx+cosx) is decreasing on (0,\ pi//4) and increasing on (pi//4,\ pi//2) .

Examine the differentiability of the function f(x)=|sinx-cosx| at x=(pi)/(4) .

The period of the function f(x)=||sinx|-|cosx|| , is