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If cos^(2)A+cos^(2)B+cos^(2)C=1, then tr...

If `cos^(2)A+cos^(2)B+cos^(2)C=1`, then `triangle ABC` is

A

equilateral

B

isosceles

C

right angled

D

right angled isosceles

Text Solution

Verified by Experts

The correct Answer is:
D
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