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If A = [3 4; 5 2] and 2A + B is a null matrix, then B is equal to :
If x[1 2] + y[2 5] = [4 9], then :
In △ABC, AB = î + ĵ + 2k̂ and AC = 3î – ĵ + 4k̂. If D is mid-point of BC, then vector AD is equal to :
If A = [1 2; 3 4], B = [2 1; 4 2] and C = [−5 1; 7 −4] Find:
Choose the correct answers to the questions from the given options. (Do not copy the questions, write the correct answers only.)
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