sec^2(x)-1 = tan^2(x)
csc^2(x)-1 = cot^2(x)
since cot = 1/tan, it follows immediately
(sec^2x-1)(csc^2x-1)=1 prove the following identity
ive been stuck on this for hours please help
2 answers
A math tutor told me to FOIL it. This is just a hint, or starting point because I don't know for sure.