Question

(_____)^2 = (csc x-1)(csc x+1)
fill in the blank

Answer 1

Hint :-
(a-b)(a+b)=a^2-b^2

Answer 2

so
\(\large (\csc x-1)(\csc x+1) =\csc ^2 -1^2=\csc ^2 -1\)

Answer 3

nw are you familiar with this ?
\(\large \cot^2(x) + 1 = \csc^2(x)\)
so
\(\large \cot^2(x) = \csc^2(x)-1\)
got it ?

Answer 4

let me know if u dint understand it yet :D

Answer 5

so its cot^2(x)?

Answer 6

yep :D

Answer 7

thanks!

Answer 8

np :)