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Business Mathematics by Chirag Trivedi, Kashyap Trivedi

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17

Circle

LEARNING OBJECTIVES

After studying this chapter, the student will be able to understand:

  • The standard equation of a circle

  • General equation and parametric equation of a circle

  • The centre and radius of the general equation of a circle

  • The equation of a circle touching the axes

  • The equation of a circle where the extremities of a diameter are given

  • The intersection of lines ac + by + c = 0 (a2 + b2 ≠ 0) with the circle x2 + y2 = r2

  • The position of a point with respect to the circle

  • The equation of a tangent to the circle at a given point

  • The condition in the tangent of lines to the circle and co-ordinates of contact

  • The length of the tangent drawn to the circle from the point outside the circle

  • Relation between two circles

INTRODUCTION ...

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