Question

what is the value of sin75​

Answer 1

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. this is answer from Google

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Answer 2

Answer:

sin(45+30)

= sinAcosB + cosAsinB

=sin45cos30 + cos45sin30

=1/$\sqrt{2\\}$*$\sqrt{3}$/2 + 1/$\sqrt{2\\}$*1/2

=$\sqrt{3}/2\sqrt{2} + 1/2\sqrt{2}$

=$\sqrt{3} + 1/ 2\sqrt{2}$

Step-by-step explanation: