What is pi/2-(3pi)/4 ?

The solution to pi/2-(3pi)/4 is -pi/4

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simplify pi/2-(3pi)/4

simplify

\frac{π}{2} - \frac{3 π}{4}

- \frac{π}{4}

Decimal Notation

- 0.78539 \dots

Solution steps

\frac{π}{2} - \frac{3 π}{4}

Least Common Multiplier of

2, 4 : 4

Adjust Fractions based on the LCM

= \frac{π 2}{4} - \frac{3 π}{4}

Since the denominators are equal, combine the fractions:

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

= \frac{π 2 - 3 π}{4}

Add similar elements:

2 π - 3 π = - π

= \frac{- π}{4}

Apply the fraction rule:

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

= - \frac{π}{4}

\frac{2 π}{3} + \frac{2 π}{3}

- - 9

\frac{8 ( 3 - z )}{7} = - z

b - 3 (b - 3) (1 - b) = 42

- 3 x - 1 = - 8 x + 34