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Questions › GATE › GATE 2025 › Q35
1 markMathematics › Matrices, determinants and linear systems › Consistency, rank and solution spacesModerateabout 2 min

GATE 2025 Question 35: Matrices, determinants and linear systems

Consider the following system of linear equations:

x+2y+3z=0x + 2y + 3z = 0x+2y+3z=0 2x+py=02x + py = 02x+py=0 3x+2y+pz=03x + 2y + pz = 03x+2y+pz=0

The value(s) of ppp for which the system of equations have infinitely many solutions is/are

Select all that apply.

Answer and worked solution

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Plain-text version

Consider the following system of linear equations: x + 2y + 3z = 0 2x + py = 0 3x + 2y + pz = 0 The value(s) of p for which the system of equations have infinitely many solutions is/are (A) p = 1 (B) p = 2 (C) p = 6 (D) p = 12

Matrices, determinants and linear systems has come up 102 times in 7 exams since 2006.

What this question tests

This question is on Consistency, rank and solution spaces, part of Matrices, determinants and linear systems in Mathematics.

Whether a system has no solution, one or many, and the shape of its solution set.

TestStop has 20 past-paper questions on this subtopic; the nearest in year are below.

  • IIT JAM 2022 · Q47Let the system be α u + w = 0, u + α v = 0, v + α w = 0, where α ∈ ℝ. The system has infinite solutions if α…
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Question from the GATE 2025 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.