Hello, CenturionMonkey!
I did this:
. . . . . . no
We have: .
Therefore: .
This identity makes no sense to me:
cot(x) - tan(x) - tan(x) + cot(x) = (4 - 2sec^2(x))/tan(x)
I did this:
LS
=2cot(x) - 2tan(x)
=2{cot(x) - tan(x)}
=2[{1/tan(x)} - tan(x)]
=2[{1-tan^2(x)}/tan(x)]
=2{sec^2(x)}/tan(x)
Where did i go wrong? I don't have a "4-" term.
Please help...
ps. I used the different bracket types to differentiate from different sets of brackets. i'm sorry if it means something else in math...