Q.

The area bounded by the curves y=x21 and y=1 is

Moderate

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a

23(2+1)

b

43(21)

c

2(21)

d

83(21)

answer is D.

(Detailed Solution Below)

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Detailed Solution

y=x21

Area = ABCDEA

=20111x2dx+121x21dx=201x2dx+122-x2dx=2x3301+2x-x3312213+22-223-2-13=213-53+423=83(21)

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