18

The area of the circle x^{2} + y^{2} = 16 exterior to the parabola y^{2} = 6x is

Here, the area bounded by the circle and parabola = 2 × [Area OADO + Area ADBA]

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Area of circle = π(r2)

= π(4)^{2}

= 16π units.

Thus, required area =

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18

19

The area bounded by the y-axis, y = cos x and y = sin x when is

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