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​Q28: Answers – Paper 3 – June 2018

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Content:

• Circles – Equation of Tangents​

Quizzes:​

• Circles – Equation of Tangents

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Mark Scheme

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Working

P is a point on the circle with equation         x² + y² = 80

P has x-coordinate 4 and is below the x-axis.

Work out the equation of the tangent to the circle at P.

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Question 
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​28)

P is a point on the circle with equation         x² + y² = 80

P has x-coordinate 4 and is below the x-axis.

Work out the equation of the tangent to the circle at P.

[5 marks]

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