A = π/3 ও B = π/3 হলে sin(A+B) = ?

A = π/3 ও B = π/3 হলে sin(A+B) = ?

A 0

B 1/2

C √3/2

D 1

Solution

Correct Answer: Option C

Sin(A+B) = Sin(π/3+π/3)

= Sin(2π/3)

= Sin 120^o [π = 180^o ]

= Sin (90^o + 30^o)

= Cos 30^o

= √3/2