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If vec(A) and vec(B) are perpendicular V...

If `vec(A)` and `vec(B)` are perpendicular Vectors and vector `vec(A)= 5hat(i)+7hat(j)-3hat(k)` and `vec(B)= 2hat(i)+2hat(j)-ahat(k)`. The value of `a` is

A

`-2`

B

8

C

`-7`

D

`-8`

Text Solution

Verified by Experts

The correct Answer is:
D
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