If 4 cos2α - 3 = 0 , find the value of α .
Answer & explanation
Correct answer: option 1
4 cos2α - 3 = 0
cos2α = \(\frac{3}{4}\)
cosα = \(\frac{\sqrt {3}}{2}\)
α = 30°
If 4 cos2α - 3 = 0 , find the value of α .
Correct answer: option 1
4 cos2α - 3 = 0
cos2α = \(\frac{3}{4}\)
cosα = \(\frac{\sqrt {3}}{2}\)
α = 30°