" 2."e^(x)cosec x

cosec x =-2

cosec x =-2

int e^(-x) cosec x(1+ cot x) dx is equal to a) e^(-x) cosec x + C b) -e^(-x) cosec x + C c) - e^(-x) ( cosec x + cot x ) + C d) - e^(-x) ( cosec x - tan x ) + C

int e^(x)"cosec"x(1-cotx)dx=

int e^(x)cosec^(2)(e^(x))dx

The solution of e^(x) cot y dx + (1- e^(x)) cosec^(2) y dy = 0 is

Show that, underset(x to 0) lim(1+sin 2x)^(cosec x)=e^(2)