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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
10 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
10 years ago

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

Rishi Sharma
askIITians Faculty 646 Points
one year 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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