Ong Jing Long's answer to Happy's Secondary 4 A Maths Singapore question.
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when you work with integration, make sure that you are able to get your intial expression if you differentiate your answer.
for instance, suppose we get B when we integrate A. Then you need to make sure that when we differentiate B, we get back A.
In your working, if we differentiate C (a constant), we get 0, which is not equals to 1/x.
for instance, suppose we get B when we integrate A. Then you need to make sure that when we differentiate B, we get back A.
In your working, if we differentiate C (a constant), we get 0, which is not equals to 1/x.
Date Posted:
3 years ago
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