## Babynini one year ago Help with vectors :)

1. Babynini

how do i find an angle between u and v in degrees?

2. myininaya

$\cos(\theta)=\frac{u \cdot v}{|u| \cdot |v|}$

3. myininaya

where theta is the angle you are looking for

4. Babynini

Thank you!

5. Babynini

So can you check this really quick? u = <-1,-2> v=4i+3j ---- calculations ---- theta = 153.43

6. Babynini

@myininaya :)

7. myininaya

so you did you dot product and your magnitudes?

8. myininaya

yep just did the calculations that seems to be right

9. Babynini

Yep! fantastic. thanks :)