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Matrices and Determinants · 2005 · Shift 0

4 Mathematics questions from this JEE Main paper

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JEE Main
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2005 · Shift 0
Mathematics
Matrices and Determinants

Matrices and Determinants · 2005 · Shift 0

4 Mathematics questions from this JEE Main paper

Q74.If $A^{2} - A + 1 = 0$ , then the inverse of $A$ is :
Mathematics · Matrices and Determinants · MCQ
Q75.The system of equations $α x + y + z = α - 1 x + α y + z = α - 1 x + y + α z = α - 1$ has no solutions, if $α$ is :
Mathematics · Matrices and Determinants · MCQ
Q76.If $a_{1}, a_{2}, a_{3}, ........, a_{n}, .....$ are in G.P., then the determinant $Δ = lo g a_{n} lo g a_{n + 3} lo g a_{n + 6} lo g a_{n + 1} lo g a_{n + 4} lo g a_{n + 7} lo g a_{n + 2} lo g a_{n + 5} lo g a_{n + 8}$ …
Mathematics · Matrices and Determinants · MCQ
Q77.If $a^{2} + b^{2} + c^{2} = - 2$ and f $(x) = 1 + a^{2} x (1 + a^{2}) x (1 + a^{2}) x (1 + b^{2}) x 1 + b^{2} x (1 + b^{2}) x (1 + c^{2}) x (1 + c^{2}) x 1 + c^{2} x,$ …
Mathematics · Matrices and Determinants · MCQ