Question

If a = x18 + y1jand b = x2i + y2j. The condition that would make ā and 5
perpendicular to each other is
(a) . x1y1 + x2y2 =0
(b) . x1y2 = x2y1
(c) . x1x2 = - y1y2
(d) . x1y1 = x2y2​

Answer 1

Answer:

K K k K k K k K k K k K k K k K k

Explanation:

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