Compute: (256)^0.16 × (256)^0.09
Aptitude
Surds and Indices
Difficulty: Easy
Choose an option
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A2
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B4
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C8
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D16
Answer
Correct Answer: 4
Explanation
Concept / Approach
- For the same base, add exponents when multiplying: a^m × a^n = a^(m + n).
- Convert the result using prime factorization of the base.
Step-by-step calculation(256)^0.16 × (256)^0.09 = 256^(0.16 + 0.09) = 256^0.25256 = 2^8 ⇒ 256^0.25 = (2^8)^(1/4) = 2^(8/4) = 2^2 = 4
Final Answer4