Physics, asked by karankumar221003, 1 day ago

7. A = 2 + 3 + 6k B = 3i - 6j + 2k Find a) А+ В b) A. AB

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Answered by Vansh981084

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answer:

A + B = 2 + 3 + 6k + 3i - 6j + 2k

= 5 + 8k + 3i - 6

then, AB= ( 2 + 3 + 6k ) (3i - 6j +2k )

= 6i - 12j + 4k +9i - 18j + 6k + 18i - 36j

= 33i - 66j + 10k

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