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人気のある代数 >

pir^4=4.8610^{-7}

解

π \cdot r^{4} = 4.86 \cdot 1 0^{- 7}

解

r = \frac{3.86747 E 15}{5 4 1.0 E 21}, r = - \frac{3.86747 E 15}{5 4 1.0 E 21}, r = \frac{3.86747 E 15}{5 4 1.0 E 21} i, r = - \frac{3.86747 E 15}{5 4 1.0 E 21} i

解答ステップ

π r^{4} = 4.86 \cdot 1 0^{- 7}

簡素化

4.86 \cdot 1 0^{- 7} : \frac{4.86}{10000000}

π r^{4} = \frac{4.86}{10000000}

以下で両辺を割る

π

r^{4} = 1.54699 E - 7

equationを

u = r^{2}

と以下で書き換える:

u^{2} = r^{4}

u^{2} = 1.54699 E - 7

解く

u^{2} = 1.54699 E - 7 : u = 1.54699 E - 7, u = - 1.54699 E - 7

u = 1.54699 E - 7, u = - 1.54699 E - 7

再び

u = r^{2}

に置き換えて以下を解く:

r

解く

r^{2} = 1.54699 E - 7 : r = \frac{3.86747 E 15}{5 4 1.0 E 21}, r = - \frac{3.86747 E 15}{5 4 1.0 E 21}

解く

r^{2} = - 1.54699 E - 7 : r = \frac{3.86747 E 15}{5 4 1.0 E 21} i, r = - \frac{3.86747 E 15}{5 4 1.0 E 21} i

解答は

r = \frac{3.86747 E 15}{5 4 1.0 E 21}, r = - \frac{3.86747 E 15}{5 4 1.0 E 21}, r = \frac{3.86747 E 15}{5 4 1.0 E 21} i, r = - \frac{3.86747 E 15}{5 4 1.0 E 21} i

グラフ

人気の例

x^{4} - 265 x^{2} + 1 = 0

x^{4} x - 8 = 2 x - 4

- 2 = 2 x^{5} + x^{3} + 1

(2 - x^{2})^{2} - 1 = 0

m^{4} - 13 m^{2} + 36 = 0