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For what value of (vec(a)) will the stra...

For what value of `(vec(a))` will the straight lines `(x+2)/(2)=(y)/(-3)=(z-1)/(4)and(x-3)/(a)=(y-1)/(4)=(z-7)/(a)` be perpendicular?

A

1

B

2

C

3

D

-3

Text Solution

Verified by Experts

The correct Answer is:
B
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