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The line whose vector equation are r=2ha...

The line whose vector equation are `r=2hat(i)-3hat(j)+7hat(k)+lambda(2hat(i)+phat(j)+5hat(k)) `and
`r=hat(i)+2hat(j)+3hat(k)+mu(3hat(i)-phat(j)+phat(k))` are perpendicular for all values of `lambda and mu ` if p eqauls to

A

`-1`

B

`2`

C

`5`

D

`6`

Text Solution

Verified by Experts

The correct Answer is:
(a, d)
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