# trigonometric equation 2)

• Sep 8th 2011, 12:59 AM
deathmate
trigonometric equation 2)
1-\frac{cos^2x}{1+cosx}=sinx
• Sep 8th 2011, 01:13 AM
Prove It
Re: trigonometric equation 2)
Quote:

Originally Posted by deathmate
1-\frac{cos^2x}{1+cosx}=sinx

What are you trying to do? Solve this equation? Or show it's an identity?
• Sep 8th 2011, 02:12 AM
deathmate
Re: trigonometric equation 2)
Quote:

Originally Posted by Prove It
What are you trying to do? Solve this equation? Or show it's an identity?

uppsss, sorry , i need to make equal ,left hand like right hand ,my apologies!
• Sep 8th 2011, 02:27 AM
Prove It
Re: trigonometric equation 2)
Quote:

Originally Posted by deathmate
uppsss, sorry , i need to make equal ,left hand like right hand ,my apologies!

And what makes you think that they are equal? Are you sure that you copied the question correctly?
• Sep 8th 2011, 03:12 AM
anonimnystefy
Re: trigonometric equation 2)
hi PI

i think he wants the number x for which the above equation is true.he wants to solve it.
• Sep 9th 2011, 01:18 AM
deathmate
Re: trigonometric equation 2)
i need to prove that the left side is equal to the right!
• Sep 9th 2011, 03:40 AM
Prove It
Re: trigonometric equation 2)
Quote:

Originally Posted by deathmate
i need to prove that the left side is equal to the right!

It doesn't!