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Question :

sin(pi-pi/4)

计算值

\frac{2}{2}

替代形式

\approx 0.707107

求值

sin (π - π \div 4)

重写表达式

sin (π - \frac{π}{4})

减去数字

More Steps

简化

π - \frac{π}{4}

将分数减少到一个公分母

\frac{π \times 4}{4} - \frac{π}{4}

将所有分子写在公分母上方

\frac{π \times 4 - π}{4}

使用可交换属性对术语进行重新排序

\frac{4 π - π}{4}

减去数字

More Steps

求值

4 π - π

通过计算同类项系数的和或差来合并同类项

(4 - 1) π

减去数字

3 π

\frac{3 π}{4}

sin (\frac{3 π}{4})

Solution

\frac{2}{2}

替代形式

\approx 0.707107

Show Solution

Frequently Asked Questions

计算 \(\sin(\pi-\pi/4)\)

$\frac{2}{2}$

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