If, in , and , then…

MATHEMATICS · Single correct · CBSE · Mathematics · Trigonometric Functions · Trigonometric Functions

Problem

If, in △ABC\triangle ABC, sin⁡A=sin⁡2B\sin A=\sin^2B and 2cos⁡2A=3cos⁡2B2\cos^2A=3\cos^2B, then △ABC\triangle ABC is (1) right-angled (2) obtuse-angled (3) isosceles (4) equilateral

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