derive the identity cos^2(A) + 1 = csc^2(A)

[lorimel333]

derive the identity:

cot(to the second power)A + 1 = csc(to the second power) A

 

[galactus]

Start with the Pythagorean identity: \(\displaystyle \L\\sin^{2}A+cos^{2}A=1\)

Divide both sides by $\displaystyle sin^{2}A$

You should see it fall into place then.