Find the centre and radius of the Circle (a) (x-2)²+(y+5)²=9
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Answer:
(x-2)²+(y+5)²=9
the centre of the circle is (2,-5).
and radius is 3.
Step-by-step explanation:
as we know eqn of a circle :
(x-h)²+(y-k)² = r²
where (h,k) is the centre of the circle and radius is 'r'
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