If 4 sin2α - 1 = 0, find the value of α .
Answer & explanation
Correct answer: option 3
4 sin2α - 1 = 0
sin2α = \(\frac{1}{4}\)
sinα = \(\frac{1}{2}\)
α = 30°
If 4 sin2α - 1 = 0, find the value of α .
Correct answer: option 3
4 sin2α - 1 = 0
sin2α = \(\frac{1}{4}\)
sinα = \(\frac{1}{2}\)
α = 30°