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Scalar Matrix

Which among t...

Question

Which among the following is a scalar matrix?

A

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B

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C

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D

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Solution

The correct option is A

Scalar matrix is essentially an identity matrix multiplied by a scalar constant. So in a way identity matrix itself will be a subset of scalar matrices where the concerned scalar will be equal to 1. Here none of the other matrices represent such a case. So the option will be (a).

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Which among the following is a scalar matrix?

Q. Which of the following is a scalar matrix

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