Distance Between Points

Question 1

Distance between two points

Answer 1

Square root of r one squares plus r two squares - 2 r one r two cos (theta two - theta one)

Question 2

Rectangular coordinates to polar coordinates

Answer 2

Put points as tan of angle = tan using x and y of point
Then find angle, quadrant based on what quadrant rectangular coordinate is in
Then find r by using pythag with x and y coordinates as other sides

Question 3

Root 2

Answer 3

1.4

Question 4

Root 3

Answer 4

1.7

Question 5

Y axis in polar

Answer 5

Theta equals pi/2

Question 6

X axis in polar

Answer 6

Polar axis

Question 7

Origin in polar

Answer 7

Pole