Q. Express the given expression without logs, in simplest form. Assume all variables represent positive values.(11log11(7w)−log11(9y2))Answer:
Recognize Properties: Recognize the properties of logarithms that will be used to simplify the expression.The expression involves the laws of logarithms, specifically the quotient rule which states that logb(a)−logb(c)=logb(ca). We will use this property to combine the logarithms in the exponent.
Apply Quotient Rule: Apply the quotient rule to the logarithms in the exponent.Using the quotient rule, we can rewrite log11(7w)−log11(9y2) as log11(9y27w).
Simplify Expression: Simplify the expression inside the logarithm.The expression inside the logarithm can be simplified by recognizing that w is w1/2. So, we have log11(9y27w1/2).
Apply Power Rule: Apply the power rule of exponents to the base 11 with the logarithm as the exponent.According to the power rule, blogb(x)=x for any base b and positive x. Therefore, 11log11(9y27w1/2) simplifies to 9y27w1/2.
Check Simplified Form: Check if the expression is in its simplest form.The expression (7w21)/(9y2) is already in its simplest form, as there are no common factors that can be cancelled out between the numerator and the denominator.