Notation: In the following questions, underlined letters such as g, b, etc. denote column vectorsof proper length； boldface letters such as A, B, etc. denote matrices of proper size；

meansthe transpose of matrix A.

is the (n x n) identity matrix. ||αl| means the Euclidean norm ofvector @. R is the usual set of all real nun det
(A) is the determinant of square matrix A.row
(A) and col
(A) are the row and column spaces of A over R, respectively. For any linear mapT over vector spaces, we use ker(T), rank(T') and nullity(T) for the kernel, rank and nullity ofT, respectively. Let W be a subspace of

, then by W ┴ we mean the orthogonal complementof W in the Euclidean inner product space

denotethe   unilateral   Laplace and inverse Laplace transforms for t 2 0, respectively.

【題組】

一、 Which of the following sets is basis (are bases) for

?
(A)

.
(B)

(C)

(D)

(E)None of the above are true.