kaiyiyuan1609 kaiyiyuan1609

25-05-2019
Mathematics

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Double check my Math Question?

Evaluate the dot product (2, 4) and (1, -2)

My answer comes out (2, 2), is that right?

Respuesta :

altavistard altavistard

25-05-2019

Answer:

-6

Step-by-step explanation:

You are finding the dot product of vectors <2, 4> and <1, -2>. Recall that the dot product is a SCALAR. In this case <2, 4> · <1, -2> = 2(1) + 4(-2)>, or

2 - 8, or -6.

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