Grade 11Trigonometry
If sin theta divided by a = cos theta divided by b , then prove a sin 2 theta + b cos 2 theta = b
If sin theta divided by a = cos theta divided by b , then prove a sin 2 theta + b cos 2 theta = b
1 Answer
Samar Zaidi
Put tan theta=a/Basin2thetha +bCos2thethaSin 2thetha=2tanthetha/(1+tansquare thetha)Cos 2thetha=(1-tansquarethetha) / (1+tansquare thetha)On putting the values we get BI have solved it using this method
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