Find A.(B×C)
please solve....
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Cinderalla34:
Do you know how to open determinant
ya 0
do not get confused in such questions
dot product is always zero
if it is perpendicular
in such type of question consider each term in i, j, k cap form
like A be i^,B be j^ and C be k^
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answer is zero of ur question
bcz here A is perpendicular to BxC
and dot product is cos(theta)
now if theta=90
then cos90=0
bcz here A is perpendicular to BxC
and dot product is cos(theta)
now if theta=90
then cos90=0
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