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Logic Gates

If the trace ...

Question

If the trace of $A B$ is $30$ then the trace of $B A$ is

- 30

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15

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30

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0

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Solution

The correct option is C $30$
For two matrices $A$ and $B$ trace of $A B$ = trace of $B A$
Given trace of $A B = 30$
So trace of $B A = 30$ .

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