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Popular Algebra >

join s/(2pir)-r

Solution

join

\frac{s}{2 \cdot π \cdot r} - r

Solution

\frac{s - 2 π r ^{2}}{2 π r}

Solution steps

\frac{s}{2 π r} - r

Convert element to fraction:

r = \frac{r 2 π r}{2 π r}

= \frac{s}{2 π r} - \frac{r \cdot 2 π r}{2 π r}

Since the denominators are equal, combine the fractions:

\frac{a}{c} \pm \frac{b}{c} = \frac{a \pm b}{c}

= \frac{s - r \cdot 2 π r}{2 π r}

s - r \cdot 2 π r = s - 2 π r^{2}

= \frac{s - 2 π r ^{2}}{2 π r}

Popular Examples

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- \frac{1}{10} + \frac{5}{8}

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\frac{4}{7} \cdot \frac{2}{3}

simplify sqrt(21)*sqrt(7)simplify

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Frequently Asked Questions (FAQ)

What is join s/(2*pi*r)-r ?
The solution to join s/(2*pi*r)-r is (s-2pir^2)/(2pir)

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