Ng Ming Bing's answer to Awan's 5 Integration Maths United Kingdom question.

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Ng Ming Bing
Ng Ming Bing's answer
53 answers (A Helpful Person)
1st
Think should be sth like this for part 1
the region is a circle with rad between 1 and 2. So convert to polar coordinates, theta is from 0 to 2pi, r is from 1 to 2