Q. Which of the following is equivalent to log2(c)⋅logc(2) ?Choose 1 answer:(A) log(c)(B) log(2)(C) 1(D) −1
Recognize Relationship: Recognize the relationship between the two logarithms.The two logarithms log2(c) and logc(2) are inverses of each other because they have their bases and arguments swapped.
Apply Change of Base: Apply the change of base formula to one of the logarithms.Change of base formula: logb(a)=logk(b)logk(a), where k is any positive number different from 1.Let's apply this to logc(2): logc(2)=log(c)log(2).
Substitute Change of Base: Substitute the change of base expression into the original equation.Now we have log2(c)⋅(log(c)log(2)).
Simplify Expression: Simplify the expression.Notice that log2(c) is equivalent to log(c)1 in base 2. So we have (log(c)1)⋅(log(c)log(2)).
Recognize Expression Simplifies: Recognize that the expression simplifies to 1.The log(c) in the denominator of the first fraction and the log(c) in the numerator of the second fraction cancel each other out, leaving us with log(2)/log(2), which equals 1.