Mathematics

Problem

Which one of the following statements about the inverse trigonometric functions is correct? a)

y=\arcsin x

is decreasing on

(-1,1)

. b)

y=\arctan x

is increasing for all real

x

. c)

y=\arccos x

is increasing on

(0,1)

. d)

y=\arcsin x

is increasing on

(-\pi/2,\pi/2)