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Question 02 (a) 

Find the total area of the finite plane region lying between the curves and . 
Make sure you understand the problem fully: What is the question asking you to do? Are there specific conditions or constraints that you should take note of? How will you know if your answer is correct from your work only? Can you rephrase the question in your own words in a way that makes sense to you? 
If you are stuck, check the hint below. Consider it for a while. Does it give you a new idea on how to approach the problem? If so, try it! 
Hint 

Start by sketching the region. 
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Solution 

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Please rate my easiness! It's quick and helps everyone guide their studies. The curves and intersect at the points By symmetry, the area of the region bounded by the curves between and is equal to the area of the region bounded by the curves between and . So the total area will be equal to two times the area of the region between and . Between and , we have ; that is, the curve is above the curve . So the area bounded by the curves and between and is
The total area of the region is two times this:
