by derivable u mean differentiable??
all options correct??
A function f(x) = max.(sinx, cosx, 1-cosx) is not derivable for some x in [0, 2Ï€] which may lie in the interval.......
A) [0,Ï€/2) B) [Ï€,3Ï€/2)
C) [Ï€/2,Ï€) D) [3Ï€/2,2Ï€]
(More than one options may be correct)