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Question

Choose the correct alternative in the following question:

If 2n=1024, then 2n2+2=a 64 b 128 c 256 d 512

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Solution

As, 2n=10242n=210Comparing the exponent of both the sides, we getn=10Now,2n2+2=2102+2=25+2=27=128

Hence, the correct alternative is option (b).

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