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人気のある代数 >

7.757=pir^2126

解

7.757 = π \cdot r^{2} \cdot 126

解

r = \frac{1.22477 E 15}{6.25 E 16}, r = - \frac{1.22477 E 15}{6.25 E 16}

+1

十進法表記

r = 0.13998 \dots, r = - 0.13998 \dots

解答ステップ

7.757 = π r^{2} \cdot 126

辺を交換する

π r^{2} \cdot 126 = 7.757

以下で両辺を割る

π 126

r^{2} = 0.01959 \dots

x^{2} = f (a)

の場合, 解は

x = f (a), - f (a)

r = 0.01959 \dots, r = - 0.01959 \dots

0.01959 \dots = \frac{1.22477 E 15}{6.25 E 16}

- 0.01959 \dots = - \frac{1.22477 E 15}{6.25 E 16}

r = \frac{1.22477 E 15}{6.25 E 16}, r = - \frac{1.22477 E 15}{6.25 E 16}

グラフ

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