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How to evaluate exponential logarithmic expression with decimal bases and infinite GP sums

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Topic
Algebra
Difficulty
Medium
Exam
JEE 2026
Akash Singh
Akash Singh
20

Let α=14+18+116+…∞\alpha = \frac{1}{4} + \frac{1}{8} + \frac{1}{16} + \ldots \infty and
β=13+19+127+…∞\beta = \frac{1}{3} + \frac{1}{9} + \frac{1}{27} + \ldots \infty. Then the value of
(0.2)log⁡5(α)+(0.04)log⁡5(β)(0.2)^{\log_{\sqrt{5}}(\alpha )} + (0.04)^{\log_{5}(\beta )} is equal to :

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