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Junior College 1 chevron_right H3 Maths chevron_right Malaysia

Can someone help me with this question please... This should be solve using the substitution method right?

Date Posted: 5 years ago
Views: 539
Eric Nicholas K
Eric Nicholas K
5 years ago
Yup, and the substitution is the one which makes 15x2 + 3 a single term. Typically a trigonometric substitution.

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Eric Nicholas K
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Something like this will be good.
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Gordon Chan
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u-sub:

u = 15x²+3
du = 30x dx
dx = 1/30x du