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If a,b,c,d>0, use the properties of logarithms to simplify and then find the exact numerical value of 3loga/b+logd²/c +log(abc)−logd if a⁴d−10b²=0 (10 marks)

User Unobf
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Final answer:

The logarithmic expression simplifies to log(a³b²c) using properties of logarithms. Using the given equation a⁴d -10b² = 0, we find d = 10b²/a⁴. Without specific values for a, b, c, and d, we cannot find an exact numerical value.

Step-by-step explanation:

To simplify the expression 3log(a/b) + log(d²/c) + log(abc) - log(d) using properties of logarithms, we start by applying the power rule which states that the logarithm of a number raised to an exponent is the product of the exponent and the logarithm of the number.

Simplify each term:






Combine the terms:


Using the properties of logarithms, combine terms:


Cancel out like terms and simplify:


Given that a⁴d - 10b² = 0, we can solve to find that d = 10b²/a⁴. Substitute d into the simplified logarithmic expression, and evaluate using the given equation.

However, without specific numerical values for a, b, c, and d, we cannot calculate an exact numerical value.

User Levi Baguley
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