TS EAMCET · Maths · Circle
If the circle cuts off a chord of length units on the line then the value of is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
Circle: x2+y2-6x+2y-28=0 Centre O(3,-1), Radius r=-32+12--28 units =38 units Since, OD⊥AB So, OD=2·3-5·-1+1822+-52 units =29 units Now, in ∆OAD AD2=r2-OD2 (By Pythagoras Theorem) =38-29=9 ⇒AD=3 units Since perpendicular from centre of circle to a…
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