If sin θ = \(\sqrt {3 }\)cos θ, then what is the value of sin2θ?
Answer & explanation
Correct answer: option 3
sin θ = \(\sqrt {3}\) cos θ
⇒ \(\frac{sin θ}{cos θ}\) = \(\sqrt {3}\) ⇒ tan θ = \(\sqrt {3}\)
θ = 60°
sin 2θ = sin (2× 60°) = sin 120°
= sin (180 - 60°) = sin 60°
= \(\frac{\sqrt {3 }}{2}\)