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Question

If A=log2 log2 log4 256+2log22, then A is equal to

A
2
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B
3
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C
5
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D
7
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Solution

The correct option is C 5
A=log2 log2 log4 256+2log2122
=log2 log2 log4 44+2×1(12)log22
=log2 log24+4=log2 log2 22+4
=log22+4=1+4=5

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