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A=b=30,sin(a+b)=sina cosb +cosa +sinb |
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Answer» here is your answer Step-by-step explanation: given angle a and angle b are EQUAL to 30° consider, L.H.S SIN(30°+30°) = sin60° = √3/2 R.H.S (sin30°)( COS 30°) + (cos30°)( sin30°) 1/2 * √3/2 + √3/2* 1/2 √3/4+√3/4 √3/2 therefore sin(a+b) = Sin a cos b + cos a sin b |
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