## Prove Trigonometric Identities

Trigonometric ratios and functions, the unit circle, inverse trig functions, identities, trig graphs, etc.
Sh Jalal
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Joined: Sun Jan 17, 2016 2:56 pm
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### Prove Trigonometric Identities

Could you help me to Prove this :

SIN + COS = SIN/1-COT + COS/1-TAN

FWT
Posts: 153
Joined: Sat Feb 28, 2009 8:53 pm

### Re: Prove Trigonometric Identities

Could you help me to Prove this :

SIN + COS = SIN/1-COT + COS/1-TAN
It can't be proved as written. Without the args of each of the trig functions we don't even know what they're asking about. Also your RHS means this:

$\dfrac{\sin()}{1}\, -\, \cot()\, +\, \dfrac{\cos()}{1}\, -\, \tan()$

Probably this isn't what they gave you. When you write back with the right equation please show what you've tried so far, even if you think it's wrong. Thanks.