Learn how to find the angle of the vector in the 4th quadrant

The video tutorial explains how to find the angle and magnitude of a vector. It begins with drawing the vector and identifying its components. The magnitude is calculated using the Pythagorean theorem, and the direction is determined using the tangent inverse function. The tutorial emphasizes converting angles to a positive format and concludes with a recap of the magnitude formula.

What are the components of the vector described in the first section?

• 3 horizontal units and 4 vertical units

• 4 horizontal units and 3 vertical units

• 3 vertical units and 4 horizontal units

• 4 vertical units and 3 horizontal units

How is the magnitude of a vector calculated?

• By using the Pythagorean theorem

• By adding the components

• By subtracting the components

• By multiplying the components

What is the magnitude of the vector discussed in the second section?

• 6

• 5

• 4

• 7

What is the initial angle calculated using the tangent function?

• 53.13 degrees

• -306.87 degrees

• -53.13 degrees

• 306.87 degrees

How is the negative angle converted to a positive angle?

• By adding 360 degrees

• By subtracting from 180 degrees

• By adding 180 degrees

• By subtracting from 360 degrees