Question

a vector A is along the positive xaxis.if B is another vector such that A×B is zero,than B should be what?​

Answer 1

Answer:

Given a vector A is along +-ve x-axis and AxB=0. Then what about B?

Now AxB=0

ABsinθ\^n=0

As A and { \^n} are non-zero.

Bsinθ=0

B=0 or sinθ=0

B=0 or θ=00 or θ=1800

Hence there are three possibilities. B = 0 or B is along +-ve x-axis ( in the direction of A) or B is along - ve x-axis ( opposite direction of A).

So we might say, either B =0 or B is parallel to A

Explanation:

hope it helps♥️

Answer 2

Answer:

WTF

Explanation:

gig a GHG the a high atatatau