Answers

  • Brainly User
2014-11-02T14:40:23+05:30
Divide your equation with 2. You get sinA=(√3/2)cos10 + (1/2)sin10. Now, √3/2=sin60 and 1/2=cos60. This is sinA=sin60*cos10+cos60*sin10. Hence, sinA=sin70 and A=70 as A lies between 0 and 90
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