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受欢迎的代数 >

290=(9.81*t^2)/2

解答

290 = \frac{9.81 \cdot t ^{2}}{2}

解答

t = \frac{2.36493 E 14}{4000000000000}, t = - \frac{2.36493 E 14}{4000000000000}

+1

十进制

t = 7.68917 \dots, t = - 7.68917 \dots

求解步骤

290 = \frac{9.81 t ^{2}}{2}

交换两边

\frac{9.81 t ^{2}}{2} = 290

在两边乘以

2

9.81 t^{2} = 580

两边除以

9.81

t^{2} = 59.12334 \dots

对于

x^{2} = f (a)

解为

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

t = 59.12334 \dots, t = - 59.12334 \dots

59.12334 \dots = \frac{2.36493 E 14}{4000000000000}

- 59.12334 \dots = - \frac{2.36493 E 14}{4000000000000}

t = \frac{2.36493 E 14}{4000000000000}, t = - \frac{2.36493 E 14}{4000000000000}

作图

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