May/June 2026 Paper 23

2026 · 8 questions · 12 parts · 50 marks

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4Differentiation Rules Tangents NormalsHard6 marks

A curve has equation

y = \frac{e ^{2 x}}{e ^{x} + 2} .

The curve crosses the

y

-axis at the point

P

. Find an equation of the normal to the curve at

P

. Give your answer in the form

a x + b y + c = 0

, where

a

b

and

c

are integers.

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