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junior college 1 | H2 Maths
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how do i go about doing (b)? also how to do the hence part for (c)?
Date Posted: 2 years ago
Views: 389
Remind me to do part b later, but the idea is for us to express sin^3 x as
(sin x) (1 - cos^2 x)
or simply
sin x - sin x (cos x)^2
where the expression above integrates to something like
- cos x + [(cos x)^3 / 3]
(sin x) (1 - cos^2 x)
or simply
sin x - sin x (cos x)^2
where the expression above integrates to something like
- cos x + [(cos x)^3 / 3]
An expression of the form f’x times [f(x)]^n can be integrated into the form [f(x)]^(n + 1), whole thing divided by (n + 1).
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done
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clear
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For part c it goes like this.
Date Posted:
2 years ago
thank u :)
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