PRE CALC
posted by pleasehelp! .
1. solve tan36 degrees tan2degrees/ 1+tan36 degrees tan 2 degrees as a single function.
2. Find the exact value of sin (αβ) if sina=4/5 and cos β= 9/41 terminal side of α lies in I and terminal side of β lies in III
3. If cosx=1/12 and sinx > 0, find tan2x
thankyou!
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