Deciml into fraction

Rarely Tested

Formula Video

Question 1

If $$x = 9 + 4\sqrt{5}$$, what is $$x + \frac{1}{x}$$

Question 2

$$ \frac{1}{{3-2}\sqrt{2}}$$ - $$ \frac{1}{{3+2}\sqrt{2}}$$ = $$2^x$$. Find x?

Question 3

If $$ x=\sqrt{17}-\sqrt{13}$$, what is $$ \frac{30-\sqrt{884}}{\sqrt{17}+\sqrt{13}}$$?

Name	Date Taken	Score
Formula Test 1	NA	NA
Formula Test 2	NA	NA
Formula Test 3	NA	NA
Formula Test 4	NA	NA
Formula Test 5	NA	NA

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Other Logarithms, Surds and Indices Formulas

Properties of logarithm

Logarithmic Inequality

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