Given that log 7 = 0.84510, log 5 = 0.69897 and log 2 = 0.30102, find

      

Given that log 7 = 0.84510 and log 5 = 0.69897, find the logarithm of 980 without using tables or calculator

  

Answers


Raphael
Log 980 = log(72 x 2 x 10) = 2 log 7 + log 2 + log 10

= 2(0.84510) + 0.30102 + 1

= 2.99122
raphael answered the question on January 16, 2017 at 12:55


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