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if the angle between the vectors A and B is @ ,the value of the product (B x A).A is equal to (a) BA^2sin@ (b) BA^2cos@ (c) BA^2cos@sin@ (d) zero i wanted the solution also waiting for ur reply @ as theta ^2 as to the power of

if the angle between the vectors A and B is @ ,the value of the product (B x A).A is equal to


(a) BA^2sin@   (b) BA^2cos@   (c) BA^2cos@sin@  (d) zero


i wanted the solution also


waiting for ur reply


@ as theta


^2 as to the power of

Grade:11

3 Answers

vikas askiitian expert
509 Points
13 years ago

let BxA = R

BxA is a vector which is perpendicular to both B & A ...

(BxA).A = R.A

R perpendicular to A so dot product will be 0 ...            (dot product of any two perpendicular vectors is 0)

so , (BxA).A =0

opton d) is correct

vijesh jayan
49 Points
13 years ago

thanks bro!!!!!!!!!!!!!!!!!!!!!!!!!

Rishi Sharma
askIITians Faculty 646 Points
3 years ago
Dear Student,
Please find below the solution to your problem.

let BxA = R
BxA is a vector which is perpendicular to both B & A ...
(BxA).A = R.A
R perpendicular to A so dot product will be 0 ... (dot product of any two perpendicular vectors is 0)
so , (BxA).A =0

Thanks and Regards

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