Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Matrices and Determinants question

2023 · 6 Apr · Shift 2 · Q35
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Mathematics
  4. /Matrices and Determinants
  5. /2023 · 6 Apr · Shift 2 · Q35

Matrices and Determinants question

2023 · 6 Apr · Shift 2 · Q35

JEE MainMathematicsMatrices and DeterminantsMCQ+4 / −1
For the system of equations x+y+z=6x+2y+αz=10x+3y+5z=βx+y+z=6x+2 y+\alpha z=10x+3 y+5 z=\betax+y+z=6x+2y+αz=10x+3y+5z=β, which one of the following is NOT true?
  1. A
    System has a unique solution for α=3,βe14\alpha=3,\beta e14α=3,βe14.
  2. B
    System has infinitely many solutions for α=3,β=14\alpha=3, \beta=14α=3,β=14.
  3. C
    System has no solution for α=3,β=24\alpha=3, \beta=24α=3,β=24.
  4. D
    System has a unique solution for α=−3,β=14\alpha=-3, \beta=14α=−3,β=14.
PreviousNext

More from Matrices and Determinants

  • Let A=​210​12−1​0−12​​. If ∣adj(adj(adj2A))∣=(16)n, then n is equal to :2023 · MCQ
  • Let P=[23​​−21​​21​23​​​],A=[10​11​] and Q=PAPT. If PTQ2007P=[ac​bd​]…2023 · MCQ
  • If A=[1λ​510​],A−1=αA+βI and α+β=−2, then 4α2+β2+λ2 is equal to :2023 · MCQ
  • Let S be the set of all values of θ∈[−π,π] for which the system of linear equations x+y+3​z=0−x+(tanθ)y+7​z=0x+y+(tanθ)z=0 has non-trivial solution. Then π120​∑θ∈s​θ…2023 · MCQ
  • For the system of linear equations 2x−y+3z=53x+2y−z=74x+5y+αz=β, which of the following is NOT correct?2023 · MCQ
  • Let S be the set of values of λ, for which the system of equations 6λx−3y+3z=4λ2, 2x+6λy+4z=1, 3x+2y+3λz=λ has no solution. Then 12∑i∈S​∣λ∣ is equal…2023 · Numerical
  • Let A be a 2×2 matrix with real entries such that A′=αA+I, where α∈R−{−1,1}. If det(A2−A)=4, then the sum of all possible values…2023 · MCQ
  • Let A=​0a1​10c​230​​, where a,c∈R. If A3=A and the positive value of a belongs to the interval (n−1,n], where n∈N…2023 · Numerical