Posted by
**Aliya** on
.

1. Prove the identity:cosx/1-tanx+sinx/1-cotx=sinx+cosx

2.Prove the identity: cosx/1+sinx+1+sinx/cosx=2secx

Thursday

March 30, 2017
Posted by
**Aliya** on
.

1. Prove the identity:cosx/1-tanx+sinx/1-cotx=sinx+cosx

2.Prove the identity: cosx/1+sinx+1+sinx/cosx=2secx

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