Which of the following sets are closed under scalar multiplication?(i) The set of all vectors in R2 of the form (a, b) where a + 4b = 4.(ii) The set of all 2 × 2 matrices whose trace is equal to 1.(iii) The set of all polynomials i
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Which of the following sets are closed under scalar multiplication?(i) The set of all vectors in R2 of the form (a, b) where a + 4b = 4.(ii) The set of all 2 × 2 matrices whose trace is equal to 1.(iii) The set of all polynomials i
Which of the following sets are closed under scalar multiplication?
(i) The set of all vectors in R2 of the form (a, b) where a + 4b = 4
.(ii) The set of all 2 × 2 matrices whose trace is equal to 1.
(iii) The set of all polynomials in P2 of the form a0 + a1 x + a2 x2 where the product a0 a1 a2 ≤ 0.
(A) (i) only (B) (iii) only (C) (i) and (ii) only (D) (i) and (iii) only (E) none of them (F) (ii) and (iii) only (G) all of them (H) (ii) only
Which of the following sets are closed under addition?
(i) The set of all vectors in R2 of the form (a, b) where b = a2.
(ii) The set of all 3 × 3 matrices that have the vector [-2 3 2]T as an eigenvector.
(iii) The set of all polynomials in P2 of the form a0 + a1 x + a2 x2 where a0 = a2.
(A) (ii) only (B) (i) and (ii) only (C) (ii) and (iii) only (D) (i) and (iii) only (E) (i) only (F) (iii) only (G) all of them (H) none of them
Which of the following sets are closed under scalar multiplication?(i) The set of all vectors in R2 of the form (a, b) where a + 4b = 4.(ii) The set of all 2 × 2 matrices whose trace is equal to 1.(iii) The set of all polynomials i
选C 因为这个矩阵式放行矩阵 所以选c
matrices是矩阵的意思,不过矩阵我们高二才学(江苏省),你初中就做这种题目?- -
其他的单词大多看不懂,机器翻译有问题。