whyyyyyyyyyyyyyyyyyyyyy
Asked by
| 11th Dec, 2009,
06:47: PM
Expert Answer:
Sin 2A = sin (A+A)= sin Acos A+sin Acos A =2 sin Acos A(using sin (x+y) =sin x cos y +siny cos A
Answered by
| 12th Dec, 2009,
05:54: PM
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