I need help with this problem: Let R be the circle centered at with radius The lines x=6 and y=5 divide R into four regions R1, R2, R3, and R4. Let [Ri] denote the area of region Ri . If [R1]>[R2]>[R3]>[R4], then find [R1]-[R2]-[R3]+[R4].
Thanks!
https://web2.0calc.com/questions/help_98205#r3
