zs

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

受欢迎的代数 >

(r^2)/(|(1-r^2)|)=1.02

解答

\frac{r ^{2}}{∣ ( 1 - r ^{2} ) ∣} = 1.02

解答

r = - 51, r = - \frac{51}{101}, r = \frac{51}{101}, r = 51

+1

十进制

r = - 7.14142 \dots, r = - 0.71059 \dots, r = 0.71059 \dots, r = 7.14142 \dots

求解步骤

\frac{r ^{2}}{∣ ( 1 - r ^{2} ) ∣} = 1.02

化简

\frac{r ^{2}}{∣ ( 1 - r ^{2} ) ∣} : \frac{r ^{2}}{∣ 1 - r ^{2} ∣}

\frac{r ^{2}}{∣ 1 - r ^{2} ∣} = 1.02

在两边乘以

1 - r^{2}

r^{2} = 1.02 1 - r^{2}

解

r^{2} = 1.02 1 - r^{2} : r = - 51 or r = - \frac{51}{101} or r = \frac{51}{101} or r = 51

r = - 51, r = - \frac{51}{101}, r = \frac{51}{101}, r = 51

验证解

找到无定义的点（奇点）:

r = - 1, r = 1

将不在定义域的点与解相综合:

r = - 51, r = - \frac{51}{101}, r = \frac{51}{101}, r = 51

作图

流行的例子

|(2x)/(x-2)|+|x|=(x^2)/(|x-2|)

\frac{2 x}{x - 2} + ∣ x ∣ = \frac{x ^{2}}{∣ x - 2 ∣}

((x+1)/x)^2+((1-1)/x)^2=1

(\frac{x + 1}{x})^{2} + (\frac{1 - 1}{x})^{2} = 1

((n+1)!)/((n-1)!)=20

\frac{( n + 1 ) !}{( n - 1 ) !} = 20

solvefor t,s= d/((t-t_{0))}

so l v e f or t, s = \frac{d}{( t - t _{0} )}

3/((x+1/2)-x^2+3x)= 6/((2x+1))+x^2-2

\frac{3}{( x + \frac{1}{2} ) - x ^{2} + 3 x} = \frac{6}{( 2 x + 1 )} + x^{2} - 2