Hey Guyzzz,

I have two Identities given and I have to prove either one.

1)

OR

2)

Please, try you best.

Thank you.

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- January 20th 2010, 07:34 PMMordernWar2Proving Trig. Identity
Hey Guyzzz,

I have two Identities given and I have to prove either one.

1)

*OR*

2)

Please, try you best.

Thank you. - January 20th 2010, 08:04 PMpickslides
- January 20th 2010, 08:05 PMSoroban
Hello, MordernWar2!

Quote:

We have: .

Multiply by

. . . . . . . .

Quote:

It is probably: .

. . . . . . . . . . . .