1) Solve the following inequality :
|x-2|>1
2) Find the equation of the circle that passes through (0,1) (2,0) (3,4)
) Solve
x-2>1 and x-2<-1
x>3 or x<1
2)The equation of a circle is given by
Sub each point in and solve the simultaneous equations
(1)
(2)
(3)
(2)-(1) 3+2a-b=0 (4)
(3)-(1)24+3a+3c=0 so 8+a+b=0 (5)
(4)+(5) 11+3a=0 so a=-3/11
then from (5)8-3/11+b=0 so b=-85/3
Then from (1) 1-85/3+c=0 so c=82 over 3
x^2+y^2-3x/11-85y/3+82/3=0