How do you estimate the value of #log_10 6.25#?

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Answer 1 · 2017-04-07T12:38:27

#log_10 6.25=0.7960#

We can use here #log_10 2=0.3010#

Hence #log_10 6.25=log_10 (100/16)#

= #log_10 10^2-log_10 2^4#

= #2log_10 10-4log_10 2#

= #2xx1-4xx0.3010#

=#2-1.2040#

= #0.7960#