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Q.

Statement-I: The area bounded by x = 2 cosθ, y = 3 sinθ is 36 π sq. units.
Statement-II : The area bounded by x = 2 cosθ , y = 2 sinθ is 4π sq. units.
Which of the above statement is correct.

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a

only II

b

Neither I nor II

c

only I

d

Both I and II

answer is B.

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Detailed Solution

Statement-I: The area bounded by x = 2 cosθ, y = 3 sinθ is 36 π sq. units

x = 2 cosθ, y = 3 sinθ x22+y32=1

Area enclosed by the ellipse x24+y29=1 is πab=π23=6π

Statement-II : The area bounded by x = 2 cosθ , y = 2 sinθ is 4π sq. units

x = 2 cosθ , y = 2 sinθ x2+y2=4cos2θ+sin2θ (i.e) x2+y2=4

Area enclosed by the circle  x2+y2=4 is πr2=4π

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