TS EAMCET 03 May 2019 Shift 1 Solved Paper

Section: Mathematics
© examsiri.com
Question : 51 of 160
 
Marks: +1, -0
If the line ax + by = 1 is a tangent to this circle Sr = x2+y2−r2 = 0 , then which one of the following is true?
Go to Question: