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  • Exponents and Logarithms
  • Logarithm tests
  • Logarithmic properties

Logarithmic properties

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  • Question 1:
    1 pts
    $$a^{\log_{a}x}=x$$
  • Question 2:
    1 pts
    $$\log_{a}b=\dfrac{\log_{c}b}{\log_{c}a}$$
  • Question 3:
    1 pts
    Simplify. $$\log_{a^{s}}x$$

    $s\log_{a}x$

    $\dfrac{1}{s}\log_{a}x$

    $\log_{a}x^{s}$

    none of these

  • Question 4:
    1 pts
    Find the correct property for $\log_{a}b.$
    $-\dfrac{1}{\log_{b}a}$
    $\dfrac{1}{\log_{b}a}$
    $-\log_{b}a$
    $\dfrac{1}{\log ab}$
  • Question 5:
    2 pts
    Simplify. $$\log_{10}(\log_{4}(\log_{3}81))$$

    $3$

    $4$

    $1$

    $0$

  • Question 6:
    2 pts
    Evaluate. $$\dfrac{\log_{2}36}{\log_{2}6}$$
    $1$
    $2$
    $4$
    $6$
  • Question 7:
    2 pts
    Evaluate. $$\log_{3}5\cdot \log_{4}9\cdot \log_{5}2$$
  • Question 8:
    2 pts
    Find $x$ from equation $\log_{3}x=3\log_{3}a+2\log_{3}c.$

    $x=a^{3}c^{3}$

    $x=a^{2}c^{2}$

    $x=ac^{3}$

    $x=a^{3}c^{2}$

  • Question 9:
    3 pts
    If $\log 5=a$ and $\log 3=b$ evaluate $\log_{30}8$.
    $\log_{30}8=$
  • Question 10:
    3 pts
    Simplify. $$\log_{3}2\cdot\log_{4}3\cdot\log_{5}4\cdot\log_{6}5\cdot\log_{7}6\cdot\log_{8}7$$

    $\dfrac{2}{3}$

    $\dfrac{1}{3}$

    $\dfrac{1}{4}$

    $\dfrac{2}{5}$

  • Question 11:
    3 pts
    If $\log_{14}7=a$ and $\log_{14}5=b$ then
    $\log_{35}20 = $
  • Question 12:
    3 pts
    $$\log_{3}7=\log_{\frac{1}{3}}{\dfrac{1}{7}}$$