(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

this time i have posted two questions on a post, instead of me creating posts all over the forum.

a)cot^2x + cosec^2x = 7

b) (2 cosec^2)2x + cot2x =3

find out the solutions.

2. Relevant equations

cosec^2 = 1+ cot^2

3. The attempt at a solution

a) cot^2x + cosec^2x = 7

cosec^2-1 + cosec^2 = 7

2cosec^2x = 8

now i thought of solving it by the difference of squares?

couldn't solve it =/

b) totally cluesless as this one has 2 after function cot i.e cot2x =/

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Trig. again

**Physics Forums | Science Articles, Homework Help, Discussion**