Logarithms Practice Test 1

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Question : 5 of 40

Marks: +1, -0

If

\log_4 7 = x

, then

\log_7 16

is equal to:

$2/x$
$x$
$2x$
$x^2$

Solution:

\log_4 7 = x

⇒\log_7 4=1/x

⇒2\log_7 4=2/x

⇒\log_7 16=2/x

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