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अनुपातों \(\frac{a_1}{a_2}, \frac{b_1}{b_2}\) एवं \(\frac {c_1}{c_2}\) की तुलना कर ज्ञात करें कि निम्नांकित युग्म समीकरण संगत है या असंगत :

x + 2y + 3 = 0, 3x + 6y + 9 = 0.

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x + 2y + 3 = 0    .....(i)

3x + 6y + 9 = 0   ......(ii)

x + 2y + 3 = 0

a1x + b1y + c1 = 0 के साथ तुलना करने पर

a1 = 1, b1 = 2, c1 = 3

3x + 6y + 9 = 0

a2x + b2y + c2 = 0 के साथ तुलना करने पर

a2 = 3, b2 = 6, c2 = 9

\(\frac {a_1}{a_2} = \frac 13\)

\(\frac {b_1}{b_2} = \frac 26 = \frac 13\)

\(\frac {c_1}{c_2} = \frac 39 = \frac 13\)

चूँकि, \(\frac {a_1}{a_2} = \frac {b_1}{b_2} = \frac{c_1}{c_2}\)

युग्म समीकरण संगत है।

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