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प्रश्न
The area of the region bounded by the curve y = sinx between the ordinates x = 0, x = `pi/2` and the x-axis is ______.
विकल्प
2 sq.units
4 sq.units
3 sq.units
1 sq.unit
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उत्तर
The area of the region bounded by the curve y = sinx between the ordinates x = 0, x = `pi/2` and the x-axis is 1 sq.unit.
Explanation:
= `int_0^(pi/2) sin x "d"x`
= `- [cos x]_0^(pi/2)`
= `-[cos pi/2 - cos 0]`
= `-[0 - 1]`
= 1 sq.unit
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