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In a triangle ABC if sin A sin B=ab//c^2...

In a triangle ABC if sin A sin B=`ab//c^2`, then the triangle is

A

equilateral

B

right angled

C

obtuse angled

D

none

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-PROPERTIES OF TRIANGLES -EXERCISE 1A
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