The value of

MATHEMATICS · Single correct · CBSE · Mathematics · Continuity and Differentiability · Continuity and Differentiability

Problem

The value of 49a+5b49^a+5^b, where a=1−log⁡72a=1-\log_7 2 and b=−log⁡54b=-\log_5 4, is (1) 10.510.5 (2) 11.511.5 (3) 12.512.5 (4) 13.513.5

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