ja

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

人気のある代数 >

solvefor t,-4.905t^2-0.517t-15=0

解

t, - 4.905 t^{2} - 0.517 t - 15 = 0

解

t = - \frac{517}{9810} - i \frac{294032711}{9810}, t = - \frac{517}{9810} + i \frac{294032711}{9810}

解答ステップ

- 4.905 t^{2} - 0.517 t - 15 = 0

以下で両辺を乗じる:

1000

- 4905 t^{2} - 517 t - 15000 = 0

解くとthe二次式

t_{1, 2} = \frac{- ( - 517 ) \pm ( - 517 ) ^{2} - 4 ( - 4905 ) ( - 15000 )}{2 ( - 4905 )}

簡素化

(- 517)^{2} - 4 (- 4905) (- 15000) : 294032711 i

t_{1, 2} = \frac{- ( - 517 ) \pm 294032711 i}{2 ( - 4905 )}

解を分離する

t_{1} = \frac{- ( - 517 ) + 294032711 i}{2 ( - 4905 )}, t_{2} = \frac{- ( - 517 ) - 294032711 i}{2 ( - 4905 )}

t = \frac{- ( - 517 ) + 294032711 i}{2 ( - 4905 )} : - \frac{517}{9810} - i \frac{294032711}{9810}

t = \frac{- ( - 517 ) - 294032711 i}{2 ( - 4905 )} : - \frac{517}{9810} + i \frac{294032711}{9810}

二次equationの解:

t = - \frac{517}{9810} - i \frac{294032711}{9810}, t = - \frac{517}{9810} + i \frac{294032711}{9810}

グラフ

人気の例

k^{2} + 5 k = 14

x^{2} - 4 x - 70 = 80 + x

- 4 x^{2} - 3 x - 1 = 0

(5 x - 2)^{2} = 36

- x = - 10 - x^{2} + 3 x