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1.8.8 Integration by substitution (A-level only)
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Question 80
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Markscheme
Evaluate the following indefinite integrals:
i.
∫x2−9x3−27x+1 dx \int \frac{x^2 - 9}{x^3 - 27x + 1} \, \mathrm{d}x
∫
x
3
−
27
x
+
1
x
2
−
9
d
x
[2]
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3
Grade answer
ii.
∫13e2x(e2x−5)6 dx \int \frac{13 \mathrm{e}^{2x}}{(\mathrm{e}^{2x} - 5)^6} \, \mathrm{d}x
∫
(
e
2
x
−
5
)
6
13
e
2
x
d
x
[3]
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Markscheme
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3
Grade answer
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1.8.8 Integration by substitution (A-level only) Questions
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1.8.8 Integration by substitution (A-level only)
