Find the area of the region enclosed by the parabola x2 = y, th

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsLong Answer Type

31. Find the area of the region enclosed by the parabola y2 = 4 a x and the line y = mx.
176 Views

32.

Find the area bounded by the curve  y = x2 and the line y = x.
OR
Find the area of the region {(x. y): x2 ≤ y ≤ x}.

202 Views

33. Using the method of integration find the area bounded by the curve |x| + |y| = 1.
[Hint: The required region is bounded by lines x + y = 1, x– y = 1, – x + y = 1 and
– x – y = 1].


146 Views

34.

Find the area of the region bounded by the line y = 3 x + 2, the x-axis and the ordinates x = - 1 and x = 1.

112 Views

Advertisement
35. Find the area of the region included between the parabola straight y space equals 3 over 4 straight x squared space and space the space line space 3 straight x space minus space 2 straight y space plus space 12 space equals space 0
127 Views

36. Find the area bounded by the parabola x2 = 4 y and the straight line x = 4 y - 2.
201 Views

37. Find the area of the region included between the parabola y2 = x and the line x + y = 2.
1184 Views

Advertisement

38.

Find the area of the region enclosed by the parabola x2 = y, the line y = x + 2 and the x-axis.
OR
Draw the rough sketch and find the area of the region:
{(x, y): x2 < y < x + 2}


The equation of parabola is
x2 = y    ...(1)
The equation of line is
y = x + 2    ...(2)
From (1) and (2), we get,
x2 = x + 2
∴ x2 - x - 2 = 0


⇒ (x - 2) (x + 1) = 0 ⇒    x = 2, -1
∴    from (2), y= 2 + 2, -1 +2 = 4, 1
∴  parabola (1) meets line (2) in two points A (2, 4) and B (-1. 1).
From A. draw AM ⊥ x-axis and from B. draw BN ⊥ x-axis.
Required area = Area AOB
integral subscript negative 1 end subscript superscript 2 left parenthesis straight x plus 2 minus straight x squared right parenthesis space dx space equals space open square brackets straight x squared over 2 plus 2 straight x minus straight x cubed over 3 close square brackets subscript negative 1 end subscript superscript 2

equals space open parentheses 4 over 2 plus 4 minus 8 over 3 close parentheses space minus space open parentheses 1 half minus 2 plus 1 third close parentheses space equals space 2 plus 4 minus 8 over 3 minus 1 half plus 2 minus 1 third equals 9 over 2 space sq. space units.

518 Views

Advertisement
Advertisement

 Multiple Choice QuestionsShort Answer Type

39.

Draw a rough sketch of the curves y = sin x and y = cos x as x varies from 0 to straight pi over 2 and find the area of the region enclosed by them and the x-axis.

282 Views

40.

Find the area bounded by the curve y = cos x between x = 0 and x = 2 straight pi.

136 Views

Advertisement