Assertion (A) : If \sqrt{4sin^4 \theta + \sin^2 2\theta} + 4 \cos^2 (\pi/4-\theta/2) = 2 then θ lies in 3rd quadrant or 4th quadrant. Reason (R) : \sqrt{\sin^2 \theta} = sin θ

Correct Answer is : (A) is true bur (R) is false

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are true but (R) is not the correct explanation of (A)

AP EAMCET Engineering 21 Apr 2019 Shift 2 Paper

Section: Mathematics

Question : 21 of 160

Marks: +1, -0

Assertion (A) : If √4sin4θ+sin22θ + 4 cos2(

−

) = 2 then θ lies in 3rd quadrant or 4th quadrant.
Reason (R) : √sin2θ = sin θ

Go to Question:

Prev Question

Next Question