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junior college 1 | H1 Maths
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Please help me solve this integration
Note that when we differentiate e^(1/x), we get e^(1/x) multiplied by (-1/x^2) via the chain rule.
In short, the denominator x^2 in the original expression is like the chain of the differential of the numerator e^(1/x).
So, the function integrates to - e^(1/x) + c.
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