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受欢迎的代数 >

1000=-16t^2+1700

解答

1000 = - 16 t^{2} + 1700

解答

t = \frac{5 7}{2}, t = - \frac{5 7}{2}

+1

十进制

t = 6.61437 \dots, t = - 6.61437 \dots

求解步骤

1000 = - 16 t^{2} + 1700

交换两边

- 16 t^{2} + 1700 = 1000

将

1700

到右边

- 16 t^{2} = - 700

两边除以

- 16

t^{2} = \frac{175}{4}

对于

x^{2} = f (a)

解为

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

t = \frac{175}{4}, t = - \frac{175}{4}

\frac{175}{4} = \frac{5 7}{2}

- \frac{175}{4} = - \frac{5 7}{2}

t = \frac{5 7}{2}, t = - \frac{5 7}{2}

作图

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