Math, asked by kiranbiradar200, 1 year ago

Define compound angle 2sin40.cos10=sinA+sinB

Answers

Answered by GB2010
5
Hiiiii........

SinA + sinB = 2sin (A + B /2 ) cos ( A - B / 2)...

A + B/ 2 = 40 & A- B /2 = 10

HENCE.... A = 50 AND B = 30 ....

i hope this helps uuuu...
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