integrate (Abs value(secx)^2/cscx)sinx dx
the absolute value of (sec x)^2
is just
sec^2 x
because when you square a number it is positive
so we have
(1/cos^2) sin / [1/sin]
or
tan^2 x dx
= tan x - x + c
is just
sec^2 x
because when you square a number it is positive
so we have
(1/cos^2) sin / [1/sin]
or
tan^2 x dx
= tan x - x + c