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

2005 · Shift 0 · Q77
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Mathematics
  4. /Matrices and Determinants
  5. /2005 · Shift 0 · Q77

Matrices and Determinants question

2005 · Shift 0 · Q77

JEE MainMathematicsMatrices and DeterminantsMCQ+4 / −1
If a2+b2+c2=−2{a^2} + {b^2} + {c^2} = - 2a2+b2+c2=−2 and f (x)=∣1+a2x(1+b2)x(1+c2)x(1+a2)x1+b2x(1+c2)x(1+a2)x(1+b2)x1+c2x∣,\left( x \right) = \left| {\begin{matrix} {1 + {a^2}x} & {\left( {1 + {b^2}} \right)x} & {\left( {1 + {c^2}} \right)x} \\ {\left( {1 + {a^2}} \right)x} & {1 + {b^2}x} & {\left( {1 + {c^2}} \right)x} \\ {\left( {1 + {a^2}} \right)x} & {\left( {1 + {b^2}} \right)x} & {1 + {c^2}x} \\ \end{matrix} } \right|,(x)=​1+a2x(1+a2)x(1+a2)x​(1+b2)x1+b2x(1+b2)x​(1+c2)x(1+c2)x1+c2x​​, then f (x)(x)(x) is a polynomial of degree :
  1. A
    111
  2. B
    000
  3. C
    333
  4. D
    222
PreviousNext

More from Matrices and Determinants

  • Let A=​121​−111​1−31​​. and 10B=​4−51​20−2​2α3​​…2004 · MCQ
  • Let A=​00−1​0−10​−100​​. The only correct statement about the matrix A is2004 · MCQ
  • If a1​,a2​,a3​,.........,an​,...... are in G.P., then the value of the determinant ​logan​logan+3​logan+6​​logan+1​logan+4​logan+7​​logan+2​logan+5​logan+8​​​,…2004 · MCQ
  • If A=[ab​ba​] and A2=[αβ​βα​], then2003 · MCQ
  • If 1,ω,ω2 are the cube roots of unity, then Δ=​1ωnω2n​ωnω2n1​ω2n1ωn​​…2003 · MCQ
  • If the system of linear equations x+2ay+az=0;x+3by+bz=0;x+4cy+cz=0; has a non - zero solution, then a,b,c.2003 · MCQ
  • If a>0 and discriminant of ax2+2bx+c is −ve, then ​abax+b​bcbx+c​ax+bbx+c0​​ is equal to2002 · MCQ
  • Let A=[α6​−1β​],α>0, such that det(A)=0 and α+β=1. If I denotes 2×2 identity matrix, then the matrix…2025 · MCQ