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Step 1 :

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The matrices are $\"\"$ and $\"\"$ .

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The expression is $\"\"$ .

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Find $\"\"$ : \ \

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$\"\"$

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Find $\"\"$ :

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The unit matrix(I ) of order $\"\"$ is $\"\"$ .

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$\"\"$

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Find $\"\"$ : \ \

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$\"\"$

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$\"\"$

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Solution :

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$\"\"$