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Question

Assertion :The area bounded by y=(x1)2, the y-axis and the line y=2 is 22(2x(x1)2)dx=103. and Reason: The curve y=x(x1)2 is intersected by y=2 at x=2 only and for $\displaystyle 0

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Assertion is incorrect, Reason is correct
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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Solving y=x(x1)2 and y=2 we get x=2
Hence y=x(x1)2 intersects the line y=2 at x=2 only.
Curve lies below the line y=2x(0,2)
hence required area is 20{2x(x1)2}dx
|2xx44x22+2x33|20=|442+163|=103
363689_296221_ans.PNG

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