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waiman
Waiman

Hong Kong

Can you show me steps and answer?

Date Posted: 5 years ago
Views: 359

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Jefri ST
Jefri St's answer
39 answers (Tutor Details)
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Sorry if there is careless mistake since the working is very long. Anyway, i hope it helps. So the key steps are : express it in fraction, complete the square then use arctan integral.