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y-अक्ष, y = cos x एवं y = sin x, 0 le x...

y-अक्ष, `y = cos x` एवं `y = sin x,`` 0 le x le (pi)/(2)` से घिरे का क्षेत्रफल ज्ञात करें।

लिखित उत्तर

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दिए गए वक्रों के समीकरण हैं, y = sin x
तथा y = cos x
(1) तथा (2) से, sin x = cos x
`implies tan x = 1`
`implies x = (pi)/(4) ( :' o le x le (pi)/(2))`
अभीष्ट क्षेत्र OABO का क्षेत्रफल
`int_(0)^(pi//4) (y_(1) - y_(2)) dx`
`int_(0)^(pi//4) cos xdx - int_(0)^(pi//4) "sin" xdx = ["sin" x]_(0)^(pi//4) + [cos x]_(0)^(pi//4)`
`= ["sin" x]_(0)^(pi//4) + [cos x]_(0)^(pi//4)`
`= ("sin" (pi)/(4) - "sin" 0) + (cos (pi)/(4) - cos 0)`
`= (1)/(sqrt(2)) - 0 + (1)/(sqrt(2)) - 1 = (sqrt(2) - 1)` वर्ग इकाई
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  11. The area bounded by the curve x + |y| = 1 and x axis is

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  13. The area of the region bounded by the curve y = x - x^(2) between x = ...

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  14. Area bounded by the curve xy^(2) = a^(2) (a -x) and y-axis is

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  15. Area bounded by the curve y^(2) (2a - x) = x^(3) and the line x = 2a i...

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  16. वक्र से घिरा क्षेत्र y = 2x - x^(2)  और सीधी रेखा y = - x है

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  17. The area enclosed between the curve y^(2) = 4x and the line y = x is

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  18. The area bounded by the curve y^(2) = x and y = |x| in first quadrants...

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  19. The area bounded by the curve y = cos x and x-axis between x=0 and x =...

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  20. वक्र से घिरा क्षेत्रफल y = 3x + 2 और x = - 1 , x = 1 ….

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  21. The area bounded by the curve y = e^(x), x-axis and ordinates x = 0 an...

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