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If the position vectors of the vertices ...

If the position vectors of the vertices A,B and C of a `DeltaABC` are `7hatj+10k,-hati+6hatj+6hatk and -4hati+9hatj+6hatk`, respectively, the triangle is

A

equilateral

B

isosceles

C

scalene

D

right angle and isosceles also

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The correct Answer is:
D
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