Q. Which of the following is equivalent to loga(18)⋅log3(a) ?Choose 1 answer:(A) 6(B) log(6)(C) log3(18)(D) log18(3)
Consider Second Logarithm: Now, let's consider the second logarithm, log3(a). We can write it as:log3(a)=log(3)log(a)
Multiply Expressions: Next, we multiply the two expressions we have obtained:log(a)log(18)×log(3)log(a)Notice that log(a) in the numerator and denominator will cancel out:log(a)log(18)×log(3)log(a)=log(3)log(18)
Apply Change of Base Formula: The expression we have now is log(18)/log(3), which is the change of base formula for log base 3 of 18: log(18)/log(3)=log3(18)
Final Equivalent Expression: Therefore, the equivalent expression is: log3(18) This corresponds to option (C) from the given choices.