| Exam Board | Edexcel |
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| Module | P3 (Pure Mathematics 3) |
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| Year | 2022 |
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| Session | October |
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| Topic | Product & Quotient Rules |
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6.
$$y = \frac { 2 + 3 \sin x } { \cos x + \sin x }$$
Show that
$$\frac { \mathrm { d } y } { \mathrm {~d} x } = \frac { a \tan x + b \sec x + c } { \sec x + 2 \sin x }$$
where \(a , b\) and \(c\) are integers to be found.