Questions
If is a complex cube root of unity, then the matrix is a
detailed solution
Correct option is A
We have |A|=1ω2ωω2ω1ω1ω2=1+ω2+ωω2ωω2+ω+1ω1ω+1+ω21ω2=0using C1→C1+C2+C3 and 1+ω+ω2=0∴A is a singular matrix.Similar Questions
Let
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