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受欢迎的代数 >

(7^2)/(25^2)+(y^2)/(24^2)=1

解答

\frac{7 ^{2}}{2 5 ^{2}} + \frac{y ^{2}}{2 4 ^{2}} = 1

解答

y = \frac{576}{25}, y = - \frac{576}{25}

+1

十进制

y = 23.04, y = - 23.04

求解步骤

\frac{7 ^{2}}{2 5 ^{2}} + \frac{y ^{2}}{2 4 ^{2}} = 1

将

\frac{7 ^{2}}{2 5 ^{2}}

到右边

\frac{y ^{2}}{2 4 ^{2}} = 1 - \frac{49}{625}

化简

1 - \frac{49}{625} : \frac{576}{625}

\frac{y ^{2}}{2 4 ^{2}} = \frac{576}{625}

在两边乘以

2 4^{2}

y^{2} = \frac{331776}{625}

对于

x^{2} = f (a)

解为

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

y = \frac{331776}{625}, y = - \frac{331776}{625}

\frac{331776}{625} = \frac{576}{25}

- \frac{331776}{625} = - \frac{576}{25}

y = \frac{576}{25}, y = - \frac{576}{25}

作图

流行的例子

4 (10 - x)^{2} = 5 x^{2}

(5 x + 3) (2 x - 8) = 0

(n(n+1))/2 =100

\frac{n ( n + 1 )}{2} = 100

- 3 t^{2} + 9 t = - 810

24 = x (x - 2)