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Question

If A2=B, then find the value of B.

A
2
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B
4
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C
6
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D
8
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Solution

The correct option is B 4
In Eg. 9, we found the value of A, i.e., A=2A=2
Thus A2=BA2=B or 2A=B2A=B will give us B=(2)2=4B=(2)2=4 or B=2×2=4B=2×2=4.
Thus the value of B=4B=4.

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