posted by Laken on .
There are two questions of my homework I'm having trouble with.. I think we are supposed to show how they are true. In other words, make one side look exactly like the other one by using the identities.
Please help, thanks
for the first, multiply the LS by (1+sinx)/(1+sinx)
It will turn into the RS
LS = (1/cosx + sinx/cosx)/(1/cosx - sinx/cosx)
we have a common denominator
and remember how to divide fractions ...
RS = (1+sinx)(1+sinx)/(1 - sin^2 x)