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If P=⎡⎢⎣x 0 00 y 00 0 z⎤⎥⎦ and Q=⎡⎢⎣a 0 00 b 00 0 c⎤⎥⎦ then prove that PQ=⎡⎢⎣xa 0 00 yb 00 0 zc⎤⎥⎦=QP |
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Answer» If P=⎡⎢⎣x 0 00 y 00 0 z⎤⎥⎦ and Q=⎡⎢⎣a 0 00 b 00 0 c⎤⎥⎦ then prove that PQ=⎡⎢⎣xa 0 00 yb 00 0 zc⎤⎥⎦=QP |
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