Answers

  • Brainly User
2014-03-29T18:06:56+05:30
By change base rule
a=log_{12} 18= \frac{log_{10} 18}{log_{10} 12}
b=log_{24} 54= \frac{log_{10} 54}{log_{10} 24}
by using log to the base 10 table
a=1.1632
b=1.2552
ab+5(a-b)=1.46+5(-0.092)=1.46-0.46=1

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2014-04-04T15:01:43+05:30
Here, it's easy bro,                                                                                                      By change base rule


by using log to the base 10 table
a=1.1632
b=1.2552
ab+5(a-b)=1.46+5(-0.092)=1.46-0.46=1
0