Q. Which of the following is equivalent to logb(4)1 ?Choose 1 answer:(A) logb(4)(B) log4(b)(C) −logb(4)(D) −log4(b)
Recognize relationship between reciprocal and change of base formula: Recognize the relationship between the reciprocal of a logarithm and the change of base formula.The reciprocal of a logarithm, such as (1)/(logb(4)), can be related to the change of base formula for logarithms.Change of Base Formula: loga(c)=(logb(c))/(logb(a))We need to find an expression that represents the reciprocal of logb(4) in terms of another logarithm.
Apply change of base formula to given expression: Apply the change of base formula to the given expression.We want to express (1)/(logb(4)) using the change of base formula. To do this, we need to find a logarithm whose base is 4 and argument is b, because the change of base formula would then give us:log4(b)=(logb(b))/(logb(4))Since logb(b)=1, we have:log4(b)=1/(logb(4))This matches the given expression (1)/(logb(4)).