Question

If $r=2a\cos \theta$ represents a circle, then its centre is:

• A. $(0,-a)$
• B. (a, a)
• C. $(-a,0)$
• D. (a, 0)
• E. (0, a)

Answer 1

Answer: (D)

If $r=2a\cos \theta$ represents a circle, then centre of circle is (a, 0).