# What is the value of ? Sin 75 o + sin 15 o = sin (45 + 30) + sin (4

| What is the value of ?

A. √3

B. 2√3

C. √(3/2)

D. 3/√2

### Right Answer is: C

#### SOLUTION

Sin 75^{o} + sin 15^{o}

= sin (45 + 30) + sin (45 – 30 )

= sin 45.cos 30 + sin 30.cos 45 + sin 45. Cos 30 – cos 45. Sin 30

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What is the value of ? Sin 75 o + sin 15 o = sin (45 + 30) + sin (4