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Problem: is Orthogonal vector (3,1,1),(-1,2,1) [ Calculator, Method and examples ]

Your problem `->` is Orthogonal vector (3,1,1),(-1,2,1)

Here `vec A=(3,1,1),vec B=(-1,2,1)`

Two vectors `vec A` and `vec B` are orthogonal, if their dot product is zero. i.e. `vec A * vec B = 0`

1. Calculate dot product
`vec A * vec B`

`=A_1*B_1 + A_2*B_2 + A_3*B_3`

`=3*(-1) + 1*2 + 1*1`

`=-3 + 2 + 1`


Here dot product is zero, so vectors are orthogonal

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