What is (r-1/r)sin(θ) ?

The solution to (r-1/r)sin(θ) is ((r^2-1)sin(θ))/r

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simplify (r-1/r)sin(θ)

simplify

(r - \frac{1}{r}) sin (θ)

\frac{( r ^{2} - 1 ) sin ( θ )}{r}

Solution steps

(r - \frac{1}{r}) sin (θ)

Join

r - \frac{1}{r} : \frac{r ^{2} - 1}{r}

= \frac{r ^{2} - 1}{r} sin (θ)

Apply the fraction rule:

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

= \frac{( r ^{2} - 1 ) sin ( θ )}{r}

(z - i)^{4}

(x - 8) (\frac{5}{x - 8} + 3 (100 - x))

- \frac{28}{( 2 x + 1 ) ^{2}}

5 + 2 x (3 x - 4)

(x - 3) (x + 1 - 2)