Let A1, A2, A3, . ., A7 be skew symmetric matrices of same order then 1 ⋅(A1)1+3 ⋅(A2)3+5(A3)5+ ldots+13(A7)13 is

Question

Let A1, A2, A3, . ., A7 be skew symmetric matrices of same order then 1 ⋅(A1)1+3 ⋅(A2)3+5(A3)5+ ldots+13(A7)13 is (A) symmetric (B) skew symmetric (C) neither symmetric nor skew symmetric (D) None of these

Tardigrade Admin · Accepted Answer

Correct answer is (b) skew symmetric

Q. Let A1​,A2​,A3​,..,A7​ be skew symmetric matrices of same order then 1⋅(A1​)1+3⋅(A2​)3+5(A3​)5+…+13(A7​)13 is

symmetric

skew symmetric

neither symmetric nor skew symmetric

None of these

Correct answer is (b) skew symmetric

Q. Let $A_{1}, A_{2}, A_{3}, .., A_{7}$ be skew symmetric matrices of same order then $1 \cdot (A_{1})^{1} + 3 \cdot (A_{2})^{3} + 5 (A_{3})^{5} + \dots + 13 (A_{7})^{13}$ is