`(2)/(sec x)-(3)/(tan x)`

Find (dy)/(dx), if 1) y=4^(log_(2)sin x)+9^(log_(3)cos x) 2) y=e^(2(log sec x))-9^(log_(3)tan x)

What is the simplified value of [ ((sec^(3)x - tan^(3)x ))/((sec x - tan x ))]-2 tan^(2)x - sec x tan x ?

Prove that (1)/(sec x-tan x)+(1)/(sec x+tan x)=(2)/(cos x)

int(sec^(2)x)/((2+tan x)(3+tan x))dx

Prove that (sec8x-1)/(sec4x-1)=(tan8x)/(tan2x)

Ify=( sec x^(@) +tan x^(@))/( sec ^(@) -tan x^(@) ) ,then (dy)/(dx)

The integral int(sec^(2)x)/((sec x+tan x)^((9)/(2)))dx equals (for some arbitrary constant K)-(1)/((sec x+tan x)^((11)/(2))){(1)/(11)-(1)/(7)(sec x+tan x)^(2)}+K(1)/((sec x+tan x)^((11)/(2))){(1)/(11)-(1)/(7)(sec x+tan x)^(2)}+K-(1)/((sec x+tan x)^((11)/(2))){(1)/(11)+(1)/(7)(sec x+tan x)^(2)}+K

sec 2x - tan 2x=

(tan 2x)/(1+ sec 2x) = tan x