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In DeltaABC, if A-=(3,2,6), B-=(1,4,5) ...

In `DeltaABC`, if `A-=(3,2,6), B-=(1,4,5) ` and `C-=(3,5,3)`, then `m angleABC=`

A

(a) `30^(@)`

B

(b) `45^(@)`

C

(c) `60^(@)`

D

(d) `90^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
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