(A) (B) (C) 11. Sketch the region between the line 1+ 9 = 1 and the circle 3,3 +y' = 1 in the rst quadrant. Describe the rene by inequalities in r and 9. 12. Sketch the region between the line a: = 1 and the circle I: + \"a = 4 with r 2 0. Describe the region 13.? inmualities in r and 0. 13. The horizontal line 1; = 1 has polar equation 5' r=csc9. Whichereaisrepresentedbrthe 1 1'! integral 5 use\" 9 d9? IN A. Rectangle ABCD B. Triangle ABC C. We ACD D. None of the above. 5 Three-dimensional coordinate systems. 14. Find the center and radius of the sphere with equation =3 + y\" + z2 = -33 + y _ 22 __ 17. 15. Describe, in words, the region of R3 represented by the inequality :9 + y! + ,2 > 22. 16. [n the following three drawings. the positive 951 9". and zaxes are labelled. Which of the following three pictures are valid three-dimensional coordinate systems that follow the right-hand rule? .I