Q. Expand the logarithm fully using the properties of logs. Express the final answer in terms of logx,logy, and logz.logy2z3x5Answer:
Identify Properties: Identify the properties used to expand log(y2z3x5). We will use the quotient property of logarithms to separate the numerator and denominator, and the power property to bring down the exponents. Quotient Property: logb(QP)=logb(P)−logb(Q) Power Property: logb(Pk)=k⋅logb(P)
Apply Quotient Property: Apply the quotient property to the given logarithm.Using the quotient property, we can write log(y2z3x5) as log(x5)−log(y2z3).
Apply Power Property: Apply the power property to the terms with exponents.Using the power property, we can write log(x5) as 5×log(x) and log(y2z3) as log(y2)+log(z3) because of the product inside the logarithm.
Expand Product: Expand the logarithm of the product y2z3. Using the product property of logarithms, which states that logb(PQ)=logb(P)+logb(Q), we can write log(y2z3) as log(y2)+log(z3).
Apply Power Property: Apply the power property to the remaining terms with exponents.Using the power property again, we can write log(y2) as 2×log(y) and log(z3) as 3×log(z).
Combine Terms: Combine all the terms to get the final expanded form.Now we combine all the terms from the previous steps to get the final expanded form: 5×log(x)−(2×log(y)+3×log(z)).
Distribute Negative Sign: Distribute the negative sign to the terms in the parentheses.Distributing the negative sign gives us 5⋅log(x)−2⋅log(y)−3⋅log(z).
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