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If A and B are two matrices of the order 3xm and 3xn, respectively and, then order of matrix (5A-2B) is
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a
3×3
b
4×3
c
n×3
d
3×n
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Correct option is D
A3xm and B3xn are two matrices. If m=n, then A and B have same orders of 3 x n each, sothe order of (5A-2B) should be same as 3xn.Similar Questions
If and , then matrix B is equal to
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