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Check whether the given three vectors are coplanar or non-coplanar. `-2 hat i-2 hat j+4 hat k ,-2 hat i+4 hat j ,4 hat i-2 hat j-2 hat k`

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Given vectors are `-2hati -2hatj +4hatk, -2hati +4hatj -2hatk, 4hati -2hatj -2hatk`
`rArr " " |{:(-2,,-2,,4),(-2,,4,,-2),(4,,-2,,-2):}| = 16 + 16 + 16 - 64 + 8 +8 =0`
Hence, the vectors are coplanar.
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