proving (sin A + cos A) (tan A + cot A) = sec A + csc A  TOPIC_SOLVED

Trigonometric ratios and functions, the unit circle, inverse trig functions, identities, trig graphs, etc.

proving (sin A + cos A) (tan A + cot A) = sec A + csc A

Postby misstokyo on Mon Sep 13, 2010 8:27 am

(sin A + cos A) (tan A + cot A) = sec A + csc A

any help would be great!
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Re: proving (sin A + cos A) (tan A + cot A) = sec A + csc A  TOPIC_SOLVED

Postby Martingale on Mon Sep 13, 2010 11:36 am

misstokyo wrote:(sin A + cos A) (tan A + cot A) = sec A + csc A

any help would be great!


Expand the left hand side and write everything in terms of sine and cosine.
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