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Question

If x=(1)3×59×54(1)2×57×512, then x3 = .

A
0
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B
-1
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C
1
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Solution

The correct option is B -1
Given: x=(1)3×59×54(1)2×57×512
We know that am×an=am+n.

Now, x=(1)3×59×54(1)2×57×512
=(1)×5(9+(4))1×57+12
=(1)×5555=1
Here, x=1.
Then, x3=(1)3=1.

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