This exercises will test how you are able to find the dot product of two vectors.

Solution of mathematics tasks is the best method to study this subject!

a · b =

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In the case of the plane problem the dot product of vectors a = {x_{1}; y_{1}} and b = {x_{2}; y_{2}} can be found by using the following formula:

a · b = x_{1}·x_{2} + y_{1}·y_{2}

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