Questions
The sum of two vectors A and B is at right. angles to their difference. Then, the correct relation is
a
A=B
b
A=2B
c
B = 2A
d
None of these
detailed solution
Correct option is A
R·S = (A+ B)·(A- B) = A·A - A·B+B ·A- B·Bor 0 = A2 - B2 (∵ A·B = B·A)∴ A2=B2 or A=BTalk to our academic expert!
Similar Questions
The value of for which two vectors are perpendicular to. each other is
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