72. The algebraic sum of distsaces of the line ax + by +20 from (1,2), (92, 1) and (3, 5) is zero and the lines bx -ay+4 =0 and 3x +4y +5=0 cut the coordinate axes at concyclic points. Then(a) a+b=2 (b) area of the triangle formed by the line ax + by + 2=0 with coordinate axes is 14/5 (c) line ax + by +3 =0 always passes through the point (-1, 1).(d) max \{a, b\}=5

72. The algebraic sum of distsaces of the line ax + by +20 from (1,2),

1.	72. The algebraic sum of distsaces of the line ax + by +20 from (1,2), (92, 1) and (3, 5) is zero and the lines bx -ay+4 =0 and 3x +4y +5=0 cut the coordinate axes at concyclic points. Then(a) a+b=2 (b) area of the triangle formed by the line ax + by + 2=0 with coordinate axes is 14/5 (c) line ax + by +3 =0 always passes through the point (-1, 1).(d) max \{a, b\}=5
Answer» 72. The algebraic sum of distsaces of the line ax + by +20 from (1,2), (92, 1) and (3, 5) is zero and the lines bx -ay+4 =0 and 3x +4y +5=0 cut the coordinate axes at concyclic points. Then(a) a+b=2 (b) area of the triangle formed by the line ax + by + 2=0 with coordinate axes is 14/5 (c) line ax + by +3 =0 always passes through the point (-1, 1).(d) max \{a, b\}=5