defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Lines Family of Lines

यदि रेखा 3x + y + 2 = 0, 2x - y + 3 = 0 और a2x + 2ay + 6 = 0 संगामी हैं, तो a का मान ज्ञात करें।

1
केवल (1 - √7)
2
(√7 + 1), (1 - √7)
3
केवल (√7 + 1)
4
(√7 + 1), (√7 - 1)
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