Thrimani Posts: 2, Reputation: 1 New Member #1 Mar 1, 2011, 08:32 AM
prove this ;- (sine A/2)/(cosA/2 1) = tanA/2?
 Thrimani Posts: 2, Reputation: 1 New Member #2 Mar 1, 2011, 08:39 AM
prove this ;- (sine A/2)/(cosA/2 +1) = tanA/2?
 Unknown008 Posts: 8,076, Reputation: 723 Uber Member #3 Mar 1, 2011, 09:31 AM

Um... do you realise that:

$\tan A = \frac{\sin A}{\cos A}$

Hence, this is not a valid proof.

 Question Tools Search this Question Search this Question: Advanced Search

## Check out some similar questions!

Show that cosecA - cotA = √1 - cosA/1 + cosA [ 2 Answers ]

Prove that cosecA - cotA = √1 - cosA/1 + cosA

Cosine and sine [ 1 Answers ]

If you add Cos²θ + Sin²θ does it equal 1? How do you prove it?

The Sine and Cosine Rules [ 3 Answers ]

Hi! =) I have tried to solve this question for a long time now, but I'm still not able to solve it =S Can you guys pllease help me? =) THANKS =) Mary and Jane were standing one behind the other, 2,3 m apart, each holding one of the two strings of a kite flying directly in front of them. The...