Math Problem Statement

Evaluate the logarithmic expressions: (a) log_6 6 and (b) log_4 (1/64).

Solution

Let's evaluate the given logarithmic expressions from the image.

(a) log66\log_6 6

The logarithmic expression log66\log_6 6 means: "To what power must 6 be raised to get 6?"

Since 61=66^1 = 6, the value is:

log66=1\log_6 6 = 1

(b) log4(164)\log_4 \left(\frac{1}{64}\right)

The logarithmic expression log4(164)\log_4 \left(\frac{1}{64}\right) asks: "To what power must 4 be raised to get 164\frac{1}{64}?"

We know that: 43=64so43=1644^3 = 64 \quad \text{so} \quad 4^{-3} = \frac{1}{64}

Thus: log4(164)=3\log_4 \left(\frac{1}{64}\right) = -3

Final answers:

  • (a) log66=1\log_6 6 = 1
  • (b) log4(164)=3\log_4 \left(\frac{1}{64}\right) = -3

Would you like further details or clarifications?

Here are 5 related questions to practice:

  1. What is log525\log_5 25?
  2. What is log327\log_3 27?
  3. How do you simplify log28\log_2 8?
  4. Find log749\log_7 49.
  5. What is log9(181)\log_9 \left(\frac{1}{81}\right)?

Tip: Remember, logba=x\log_b a = x means bx=ab^x = a.

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Math Problem Analysis

Mathematical Concepts

Logarithms
Exponents

Formulas

log_b a = x if and only if b^x = a

Theorems

Logarithmic Identity: log_b b = 1
Negative Exponent Rule: b^-x = 1/(b^x)

Suitable Grade Level

Grades 9-12