PDF chapter test TRY NOW
Prove the following:
1. \frac{sin \ \theta}{1+ cos \ \theta} + \frac{1 + cos \ \theta}{sin \ \theta} = 2 \ cosec \ \theta
2. \frac{tan \ A}{1 + sec \ A} - \frac{tan \ A}{1 - sec \ A} = 2 \ cosec \ A
Important!
This is a creative exercise. Your teacher will check it manually.
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