InterviewSolution
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InterviewSolution
| 1. |
Let `n ge 2` be an integer, `A=({:(cos((2pi)/(n)),sin((2pi)/(n)),0),(sin((2pi)/(n)),cos((2pi)/(n)),0),(0,0,1):})` and I is the idnetity matrix of order 3. ThenA. `A^(n)=I " and " A^(n-1) ne I`B. `A^(m) ne I` for any positive integer mC. A is not invertibleD. `A^(m)=0` for a positive integer m |
| Answer» Correct Answer - A | |