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受欢迎的代数 >

(6/7)^2+y^2=1

解答

(\frac{6}{7})^{2} + y^{2} = 1

解答

y = \frac{13}{7}, y = - \frac{13}{7}

+1

十进制

y = 0.51507 \dots, y = - 0.51507 \dots

求解步骤

(\frac{6}{7})^{2} + y^{2} = 1

展开

(\frac{6}{7})^{2} + y^{2} : \frac{36}{49} + y^{2}

\frac{36}{49} + y^{2} = 1

将

\frac{36}{49}

到右边

y^{2} = 1 - \frac{36}{49}

化简

1 - \frac{36}{49} : \frac{13}{49}

对于

x^{2} = f (a)

解为

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

y = \frac{13}{49}, y = - \frac{13}{49}

\frac{13}{49} = \frac{13}{7}

- \frac{13}{49} = - \frac{13}{7}

y = \frac{13}{7}, y = - \frac{13}{7}

作图

流行的例子

k^{7} + 18 \leq 20

2 x + 8 = x + 25 + 8

化简 sqrt((-10)^2)

s im pl i f y (- 10)^{2}

∣ 5 x - 23 ∣ = - 17

- \frac{x ^{2}}{5} + 15 = 0