If θ = 30°, then find the value of cos2θ + sinθ.
Answer & explanation
Correct answer: option 2
cos2θ + sinθ = cos ( 2× 30)° + sin30°
= \(\frac{1}{2}\) + \(\frac{1}{2}\) = 1
If θ = 30°, then find the value of cos2θ + sinθ.
Correct answer: option 2
cos2θ + sinθ = cos ( 2× 30)° + sin30°
= \(\frac{1}{2}\) + \(\frac{1}{2}\) = 1