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AP EAMCET202419 May 2024Evening ShiftMathematicsDeterminantsActual

The system of equations x+2 y+3 z=6, x+3 y+5 z=9 , 2 x+5 y+ a z=12 has no solution when a=

Options

  1. A5
  2. B6
  3. C7
  4. D8

Correct answer

D. 8

Step-by-step solution

For no solution | array lll 1 & 2 & 3 1 & 3 & 5 2 & 5 & a array |=0 1(3 a-25)-2(a-10)+3(5-6)=0 a=8 .

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