If `y=(tan x+secx)`, prove that `(d^(2)y)/(dx^(2))=(cosx)/((1-sinx)^(2))`
Channel: Doubtnut
Date: 2020-04-19

If `y=(tan x+secx)`, prove that `(d^(2)y)/(dx^(2))=(cosx)/((1-sinx)^(2))`