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受欢迎的代数 >

100=80(1+(4t)/(t^2+16))

解答

100 = 80 (1 + \frac{4 t}{t ^{2} + 16})

解答

t = 4 (2 + 3), t = 4 (2 - 3)

+1

十进制

t = 14.92820 \dots, t = 1.07179 \dots

求解步骤

100 = 80 (1 + \frac{4 t}{t ^{2} + 16})

展开

80 (1 + \frac{4 t}{t ^{2} + 16}) : 80 + \frac{320 t}{t ^{2} + 16}

100 = 80 + \frac{320 t}{t ^{2} + 16}

将

80

para o lado esquerdo

20 = \frac{320 t}{t ^{2} + 16}

在两边乘以

t^{2} + 16

20 (t^{2} + 16) = 320 t

解

20 (t^{2} + 16) = 320 t : t = 4 (2 + 3), t = 4 (2 - 3)

t = 4 (2 + 3), t = 4 (2 - 3)

作图

流行的例子

b^{- 2} = \frac{1}{4}

\frac{3}{4 x - 5} = x

\frac{x}{3 x + 4} = 5

2 = \frac{2}{3} - \frac{7}{y}

y - \frac{1}{y} = \frac{3 y}{4}