If is an acute angle and

MATHEMATICS · Subjective · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry

Problem

If θ\theta is an acute angle and 7+4sin⁡θ=97 + 4 \sin \theta = 9, then the value of θ\theta is : (A) 90∘90^\circ (B) 30∘30^\circ (C) 45∘45^\circ (D) 60∘60^\circ

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