Question

Find the value of sin105 without using table or calculator​

Answer 1

Answer:

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Step-by-step explanation:

sin105 = sin (45+60)

           = sin45*cos60 + cos45*sin60

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

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

Answer 2

Answer:

Sin (180°-105°)

sin75

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