If 7sin2θ + 3cos2θ= 4, 0° < θ < 90°
than the value of sin 2θ is?
Answer & explanation
Correct answer: option 3
θ = 30° satisfying the equation.
So, put θ = 30°
sin2θ = sin 60°
= \(\frac{√3}{2}\)
If 7sin2θ + 3cos2θ= 4, 0° < θ < 90°
than the value of sin 2θ is?
Correct answer: option 3
θ = 30° satisfying the equation.
So, put θ = 30°
sin2θ = sin 60°
= \(\frac{√3}{2}\)