Find $6412$ .

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answer is C.

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Detailed Solution

Given that

6412

.
Split 64 into fifth power of 2:

6412

= 8 × 8 12

8212

Using law of exponents

a p q = a p q

For real numbers:
=

8212

=4
Hence,

6412

= 8
Therefore, options 3 is correct.

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