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Check whether the given three vectors ar...

Check whether the given three vectors are coplnar or non- coplanar :
`-2hati -2 hatj + 4hatk, -2hati + 4hatj -2hatk, 4hati - 2hatj - 2hatk`.

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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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