Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$\frac{ 1 }{ \sqrt{ 7 } } -2$$

Answer

sqrt(7)/7-2

Solution


Rationalize the denominator: \(\frac{1}{\sqrt{7}} \cdot \frac{\sqrt{7}}{\sqrt{7}}=\frac{\sqrt{7}}{7}\).
\[\frac{\sqrt{7}}{7}-2\]

Decimal Form: -1.622036

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