Question

The value of 'a' for which the pair of linear equation 4x - 6y = 12 and 8x - ay = 24 is

coincident lines -

'a' के किस मान के लिए समीकरण 4x - y = 12 व 8x - ay 3D 24 संपाती रेखाएं होंगी ।

12

- 12

10

14
​

Answer 1

Answer:

» For coincident lines, the pair of linear equation should satisfy the condition mentioned below:

$\bull \: \: \boxed{ \dfrac{a1}{a2} = \dfrac{b1}{b2} = \dfrac{c1}{c2} }$

$\implies \: \dfrac{4}{8} = \dfrac{ 1}{ a} = \dfrac{12}{24}$

$\implies \frac{1}{a \: } = \frac{1}{2}$

$\implies \: \boxed{a = 2}$

hope it helps.....