If the circle x^(2) + y^(2) -4x + 6y + a...

If the circle `x^(2) + y^(2) -4x + 6y + a =0` has radius 4, find a.

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The correct Answer is:

a=-3

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AAKASH SERIES-CIRCLE-EXERCISE -1.1

If x^(2) + y^(2) + 2gx + 2fy = 0 represents a circle with cerntre (-...
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If the circle x^(2) + y ^(2) + ax + by - 12=0 has the centre at (...
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Find the equations of the circles for which the points given below a...
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If the abscissae of points A, B are the roots of the equation x^(2) + ...
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