Using polar coordinates, evaluate the integral which gives the area which lies in the first quadrant between the circles x2+y2=100
and x2−10x+y2=0

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i just did this!

18. g

20. h 30 degree turn.

21. d 90 degree angles

and also 19 is a. a sphere not a cirlcle

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10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy