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secondary 4 | A Maths
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differentiation
Date Posted: 5 years ago
Views: 243
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done
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clear
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To prove that f(x) is a decreasing function, you need to prove that f'(x) (i.e. the gradient of the graph) is always less than 0. This shows that the graph is always downward sloping.
Date Posted:
5 years ago
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