Some of number is wrong!!!

The vector should not be null-vector!!!

- space

Enter coordinates of vectors:

a | = | (, ) |

b | = | (, ) |

a | = | (, , ) |

b | = | (, , ) |

The number of digits after the decimal separator in numbers:

Vectors are perpendicular.
Vectors are collinear.
Vectors are not collinear, not perpendicular.

**References**

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