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受欢迎的代数 >

t=3t^2+2t,integral from 0 to 2 of t

解答

t = 3 t^{2} + 2 t, \int_{0}^{2} t d t

解答

t = 0, t = - \frac{1}{3}

+1

十进制

t = 0, t = - 0.33333 \dots

求解步骤

t = 3 t^{2} + 2 t

交换两边

3 t^{2} + 2 t = t

将

t

para o lado esquerdo

3 t^{2} + t = 0

使用求根公式求解

t_{1, 2} = \frac{- 1 \pm 1 ^{2} - 4 \cdot 3 \cdot 0}{2 \cdot 3}

1^{2} - 4 \cdot 3 \cdot 0 = 1

t_{1, 2} = \frac{- 1 \pm 1}{2 \cdot 3}

将解分隔开

t_{1} = \frac{- 1 + 1}{2 \cdot 3}, t_{2} = \frac{- 1 - 1}{2 \cdot 3}

t = \frac{- 1 + 1}{2 \cdot 3} : 0

t = \frac{- 1 - 1}{2 \cdot 3} : - \frac{1}{3}

二次方程组的解是:

t = 0, t = - \frac{1}{3}

作图

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