If is perpendicular to , then
(a) A.(A+B)= A^2 + AB
(b) A.B = AB cos theta
(c) A.(A+B) = A^2
(d) A.B = AB
(P.S: there are vector arrows above all the letters on the left hand side someone pls solve
zooqanpawar2012:
It's if "A" is perpendicular to "B"
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