Iat IiserMatrices And DeterminantsIAT (IISER) 2020MCQ+4 / -12020 The number of skew-symmetric matrices $A=\left[a_i j\right]_{3 \times 3}$, where $a_i j \in\{-3,-2,-1,0,1,2,3\}$ is:A $7^3$B $3^7$C $21^3$D $7^6$Check AnswerClear SelectionReveal AnswerShow Explanation