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If in a DeltaABC, sin A =sin^(2) B and 2...

If in a `DeltaABC, sin A =sin^(2) B and 2 cos ^(2)A=3 B,` then the `DeltaABC` is

A

right-angled

B

obtuse-angled

C

isosceles

D

equilateral.

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MODERN PUBLICATION-TRIGNOMETRY-EXERCISE
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