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If a+b is perpendicular to a and |b| = 2^.5 then...? (1) (2a + b) is parallel to b (2) (2a + b) is perpendicular to b (3) (2a - b) is perpendicular to b (4) (2a + b) is perpendicular to a

If a+b is perpendicular to a and |b| = 2^.5 then...?
(1) (2a + b) is parallel to b
(2) (2a + b) is perpendicular to b
(3) (2a - b) is perpendicular to b
(4) (2a + b) is perpendicular to a

Grade:12

1 Answers

Simran Vinaik
askIITians Faculty 1230 Points
5 years ago
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