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JEE Mains · Maths · STD 11 - 9. straight line

જો ત્રણ ભિન્ન રેખાઓ \(x + 2ay + a = 0, x + 3by+ b = 0\) and \(x + 4ay + a = 0\) સંગામી હોય તો બિંદુ \((a, b)\) એ  . . .  પર આવેલ છે .

  1. A વર્તુળ
  2. B અતિવલય
  3. C રેખા
  4. D પરવલય
Verified Solution

Answer & Solution

Correct Answer

(C) રેખા

Step-by-step Solution

Detailed explanation

\(x + 2ay + a = 0\,\,\,\,\,\,\,\,\,......\left( 1 \right)\) \(x + 3by + b = 0\,\,\,\,\,\,\,\,\,......\left( 2 \right)\) \(x + 4ay + a = 0\,\,\,\,\,\,\,\,\,......\left( 3 \right)\) Subtracting equation \((3)\) from \((1)\) \( - 2y = 0\) \(ay = 0 \Rightarrow y = 0\) Putting value…
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