如果方程组 {x=y+12x−y=2 的解是方程3x﹣4y+a=6的解，那么a的值是_1．_刷题宝

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如果方程组 {x=y+12x−y=2 的解是方程3x﹣4y+a=6的解，那么a的值是____．

上一题下一题 0.0难度选择题更新时间:2018-11-30 08:09:41

答案(点此获取答案解析）

3

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P

\frac{x^{2}}{a^{2}} - \frac{y^{2}}{b^{2}} = 1

a > 0

b > 0

）上的点，

F_{1}

F_{2}

是焦点，双曲线的离心率是

\frac{5}{4}

∠ F_{1} P F_{2} = 90 °

Δ F_{1} P F_{2}

面积是9，则

a + b =

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