MCQ Bank
The vectors spaces $F(-\infty, +\infty)$ and $C(-\infty, +\infty)$ are ----------
- A) Infinite-dimensional
- B) Finite-dimensional
- C)
- D)
If A and B are row equivalent matrices, then
(a) A given set of column vectors of A is ¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬_______________if and only if the corresponding column vectors of B are __________________.
- A) Linearly independent, linearly independent
- B) Linearly independent, linearly dependent
- C) Linearly dependent, linearly dependent
- D) Linearly dependent, linearly independent
The rank of a 3 x 3 matrix C (= AB), found by multiplying a non-zero column matrix A of size 3 x 1 and a non-zero row matrix B of size 1 x 3, is
- A) 3
- B) 1
- C) 0
- D) 2
If a vector space $V$ has a basis of $n$ vectors then every basis of $V$ must consists of exactly --------
- A) $n+1$ vectors
- B) $n-1$ vectors
- C) $n+2$ vectors
- D) $n$ vectors
If A is any matrix, then $$Rank(A) = Rank({A^T})$$
- A) false
- B) True
- C)
- D)
For a given matrix $$\left[ {\begin{array}{*{20}{c}} 1&{ - 2}&{ - 3}&{ - 4}&{ - 4}&6 \\\ 0&0&1&2&1&{ - 4} \\\ 0&0&0&0&1&7 \\\ 0&0&0&0&0&0 \end{array}} \right]$$ which of the following are basis vectors.
- A) $$\left[ {\begin{array}{*{20}{c}} 1 \\\ 0 \\\ 0 \\\ 0 \end{array}} \right], \left[ {\begin{array}{*{20}{c}} { - 2} \\\ 0 \\\ 0 \\\ 0 \end{array}} \right], \left[ {\begin{array}{*{20}{c}} { - 3} \\\ 1 \\\ 0 \\\ 0 \end{array}} \right], \left[ {\begin{array}{*{20}{c}} 6 \\\ { - 4} \\\ 7 \\\ 0 \end{array}} \right]$$
- B) $$\begin{gathered} \left[ {\begin{array}{*{20}{c}} 1&{ - 2}&{ - 3}&{ - 4}&{ - 4}&6 \end{array}} \right] \hfill \\ \left[ {\begin{array}{*{20}{c}} 1&0&1&2&1&{ - 4} \end{array}} \right] \hfill \\ \left[ {\begin{array}{*{20}{c}} 0&0&0&0&1&7 \end{array}} \right] \hfill \\\ \end{gathered}$$
- C) $$\left[ {\begin{array}{*{20}{c}} 1 \\\ 0 \\\ 0 \\\ 0 \end{array}} \right], \left[ {\begin{array}{*{20}{c}} { - 3} \\\ 1 \\\ 0 \\\ 0 \end{array}} \right], \left[ {\begin{array}{*{20}{c}} { - 4} \\\ 1 \\\ 1 \\\ 0 \end{array}} \right]$$
- D) $$\left[ {\begin{array}{*{20}{c}} 1 \\\ 0 \\\ 0 \\\ 0 \end{array}} \right], \left[ {\begin{array}{*{20}{c}} { - 2} \\\ 0 \\\ 0 \\\ 0 \end{array}} \right], \left[ {\begin{array}{*{20}{c}} { - 3} \\\ 1 \\\ 0 \\\ 0 \end{array}} \right]$$
If two matrices A and B are row equivalent, then their row spaces are the.
- A) Different
- B) Same
- C)
- D)
The pivot columns of a matrix $A$ form a basis for -----------
- A) $ColA$
- B) $RowA$
- C)
- D)
$Dim(M_{m\times n})$=-------
- A) $m-n$
- B) 0
- C) $mn$*
- D) $m+n$
The eigenvalues of a 4 by 4 matrix [A] are given as 2, -3, 1, 3 and 7. The $|det(A)|$ then is
- A) cannot be determined
- B) 546
- C) 25
- D) 530
If two matrices A and B are row equivalent, then their row spaces are the same.
- A) True
- B) False
- C)
- D)
Cylindrical coordinate system is also called as___________
- A) Spherical coordinate system.
- B) Rectangular coordinate system.
- C) Space coordinate system.
- D) Circular coordinate system.
If A is any matrix, then rank (A)=rank(A^t)
- A) False
- B) True
- C)
- D)
If Coordinates vector of the polynomial p=$$5 - 4x - 3{x^2}$$ relative to the basis S = $$\{ 1,x,{x^2}\}$$ for $${p_2}$$then linear combination of the basis set S is
- A) $${[p]_s} = (5,4,3)$$
- B) $${[p]_s} = (5, - 4, - 3)$$
- C) $${[p]_s} = (5, - 4,3)$$
- D) $${[p]_s} = (5,3,4)$$
The act of changing A into P^-1 AP is called a similarity transformation
- A) False
- B) True
- C)
- D)
Every square matrix A has at least one ----------.
- A) Critical point
- B) Fixed point
- C)
- D)
What is eigen value?
- A) A vector obtained from the coordinates
- B) A matrix determined from the algebraic equations
- C) It is the inverse of the transform
- D) A scalar associated with a given linear transformation
The number of parameters in the solution set of Ax = 0 if A is a 4× 4 matrix of rank 0 then nullity (A) =?
- A) 0
- B) 4
- C)
- D)
A vector space V with a basis B containing n vectors is isomorphic to $R^n$ i.e., there exist a ------------- linear transformation from $V$ to $R^n$.
- A) One-to-one
- B) Onto
- C)
- D)
The only 0-dimensional subspace of $R^3$ is ---------
- A) Zero space
- B) Uni space
- C)
- D)