I need some guidance on proving these identitles. Any help would be appreciated.
1)
((sec x+1)(sec x-1))/(2+(tan x+1)(tan x-1)) = sin^2 x
2)
sec x + csc x = (1+tan x/sin x)
Well first of all:
So
Now to the LHS of your expression:
Mulitplying out the numerator and denominator:
<-- Using the tan^2 relation in the numerator.
<-- Using the tan^2 relation in the denominator.
Now convert everything into sines and cosines:
Multiply top and bottom by :
=
-Dan