skittles_east_99
New member
- Joined
- Oct 26, 2005
- Messages
- 6
i need help on this proof.
1 + cosx sinx
--------- + --------- = 2 cscx
sinx 1 + cosx
I have done this so far....
I multipled by the least common demonator which is (sinx)(1+cosx) and for the top line I got...
1 + 2cosx + cos^2x + sin^2x = 2 cscx
Then I substituted cos^2x for 1 - sin^2x and the sin^2x
1 + 2cosx + 1 - sin^2 + sin^2x
canceled out the sin^2x and not I am stuck with this
2 + 2cosx = 2 cscX
Any help would be greatly appreciated.
1 + cosx sinx
--------- + --------- = 2 cscx
sinx 1 + cosx
I have done this so far....
I multipled by the least common demonator which is (sinx)(1+cosx) and for the top line I got...
1 + 2cosx + cos^2x + sin^2x = 2 cscx
Then I substituted cos^2x for 1 - sin^2x and the sin^2x
1 + 2cosx + 1 - sin^2 + sin^2x
canceled out the sin^2x and not I am stuck with this
2 + 2cosx = 2 cscX
Any help would be greatly appreciated.