What is join pi/2-pi ?

The solution to join pi/2-pi is -pi/2

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join pi/2-pi

join

\frac{π}{2} - π

- \frac{π}{2}

Decimal Notation

- 1.57079 \dots

Solution steps

\frac{π}{2} - π

Convert element to fraction:

π = \frac{π 2}{2}

= \frac{π}{2} - \frac{π 2}{2}

Since the denominators are equal, combine the fractions:

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

= \frac{π - π 2}{2}

Add similar elements:

π - 2 π = - π

= \frac{- π}{2}

Apply the fraction rule:

\frac{- a}{b} = - \frac{a}{b}

= - \frac{π}{2}

\frac{2}{5} - \frac{1}{6}

m^{2} - 9 m + 8

(\frac{2}{5})^{4}

\frac{9}{16} - 1

15 x^{2} + 30 x = 0