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If vec a is perpendicular to vec b and...

If ` vec a` is perpendicular to ` vec b` and ` vec r` is non-zero vector such that `p vec r+( vec rdot vec a) vec b= vec c ,` then ` vec r=` ` vec c/p-(( vec adot vec c) vec b)/(p^2)` (b) ` vec a/p-(( vec cdot vec b) vec a)/(p^2)` ` vec a/p-(( vec adot vec b) vec c)/(p^2)` (d) ` vec c/(p^2)-(( vec adot vec c) vec b)/p`

A

[r a c]=0

B

`p^(2)r=pa-(c*a)b`

C

`p^(2)r=pb-(a*b)c`

D

`p^(2)r=pc-(b*c)a`

Text Solution

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The correct Answer is:
A, D
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