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Question
Find the equation of the circle with:
Centre (−2, 3) and radius 4.
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Solution
Let (h, k) be the centre of a circle with radius a.
Thus, its equation will be \[\left( x - h \right)^2 + \left( y - k \right)^2 = a^2\]
Here, h = −2, k = 3 and a = 4
∴ Required equation of the circle:
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