Find the intervals in which `f(x)=sinx+|sinx|,\ \ 0

Find the intervals in which f(x)=sinx+|sinx| is increasing or decreasing.

Find the intervals in which f(x)=sinx-cosx , where 0 lt x lt 2pi is increasing or decreasing.

Find the intervals in which f(x)=sinx-cosx , where 0ltxlt2pi , is strictly increasing or decreasing.

Find the interval in which f(x) = sinx + cos x. [x in [0, 2 pi]] increases.

Find the intervals in which f(x) is increasing or decreasing: (1). f(x)=x|x|, x in R (2). f(x)=sinx+|sinx|, 0 < x le 2pi

Write the interval in which f(x)=sinx+cosx ,\ \ x in [0,\ pi//2] is increasing.

Find the interval for which f(x)=x-sinx is increasing or decreasing.

Find the interval for which f(x)=x-sinx is increasing or decreasing.

Find the interval for which f(x)=x-sinx is increasing or decreasing.

Find the interval for which f(x)=x-sinx is increasing or decreasing.