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If log 10 7 = a then log 10 left( - Examveda

B. (1 + a) -1. C. a10. D. 110a. Answer: Option A. Solution(By Examveda Team). log10(170)=log101−log1070=−log10(7×10)=−(log107+log1010)=−(a+1) ...

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