Question

What is the value of sin 330°?

A) 2 B) 2/√3 C) √2 D) -1/2

Answer 1

Step-by-step explanation:

-1/2

is yr ans

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Answer 2

Answer: sin(A-B)=sinA.cosB - cosA.sinB

sin 330°= sin (360°-30°) = (sin360° *cos30°) - (cos 360° * sin 30°)

= 0*√3/2 - 1*1/2 = (-1/2)

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