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Homework: 7.6 Vectors Score: 0 of pt 21 of 377.6.29 Assigned MediaLetv = 2i - 6j. Find the vector 9v_9v =(Simplify your answer: Type your answer in terms...

Question

Homework: 7.6 Vectors Score: 0 of pt 21 of 377.6.29 Assigned MediaLetv = 2i - 6j. Find the vector 9v_9v =(Simplify your answer: Type your answer in terms

Homework: 7.6 Vectors Score: 0 of pt 21 of 37 7.6.29 Assigned Media Letv = 2i - 6j. Find the vector 9v_ 9v = (Simplify your answer: Type your answer in terms



Answers

Exer. 1-8: Find (a) the dot product of the two vectors and (b) the angle between the two vectors. $$8 \mathbf{i}-3 \mathbf{j}, \quad 2 \mathbf{i}-7 \mathbf{j}$$

We're going to find the magnitude of vector V. So in order to do that, we will take the square root of the sum of all the square of the components, so one squared plus one squared is just one plus one, so we get a square root of two.

Beautiful, minus six minutes. Seven. W It's been a year and echoed your minus seven times W could humanist. I'm in a six Trey. Never seen that ego Jew medicine Man Time's money. I go to seven I minus seven times on a six becomes a plus for teach you J.

Got into a good question. We have the director as minus I minus 60. And now we have to find the value of minus seven W director for well, right. This has minus. Sell it. Minus I minus six. It well, in the bracket, this will become minus minus plus. So seven i minus minus, plus seven multiplied with six de. So this will become like this seven night plus 42 g. So value of minus seven documentaries. Seven night. Let's 42 j.

Key In order to find the magnitude of the vector, we will take the square root of the squares of all the components, so one squared plus negative one squared is a one plus one, so that will give us a value of square root of two.


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