Some of number is wrong!!!

- space

Enter coordinates of vectors:

a | = | (, ) |

b | = | (, ) |

a | = | (, , ) |

b | = | (, , ) |

The number of digits after the decimal separator in numbers:

**Scalar product** of two vectors is the product of their lengths by the cosine of the angle between them:

**References**

Copyright © 2010-2019 www.math.by

e-mail: admin@math.by