Given that sin (a+b) = sin a cos b + cos a .sin b,finf the value of sin 75
Answers
Answered by
4
Hey buddy here is ur answer !!
Question : Sin(a+b) = Sina Cosb + Cosa Sinb
Given : Sin(A+B) = Sin A Cos B + Cos A Sin B
Sin 75 = Sin ( 45 + 30) = Sin 45 Cos 30 + Cos 45 Sin 30. Sin 75 = (1 / √2) ( √3 / 2) + (1 / √2) ( 1 / 2) = [ √3 + 1] / 2√2.
Hope u like my process !!
》》 BE BRAINLY 《《
Question : Sin(a+b) = Sina Cosb + Cosa Sinb
Given : Sin(A+B) = Sin A Cos B + Cos A Sin B
Sin 75 = Sin ( 45 + 30) = Sin 45 Cos 30 + Cos 45 Sin 30. Sin 75 = (1 / √2) ( √3 / 2) + (1 / √2) ( 1 / 2) = [ √3 + 1] / 2√2.
Hope u like my process !!
》》 BE BRAINLY 《《
Similar questions