The equation of curve satisfying differential equation 1&nbs

Subject

Mathematics

Class

JEE Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

11.

  • 16

  • 1

  • 13


12.

A pair of dice is thrown and sum of dice come up multiple of 4 then find probability that at least one dice shows 4

  • 27

  • 49

  • 19

  • 58


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13.

The equation of curve satisfying differential equation 1 + y2ex + 1dy = exy2dx and also passes through the point 0, 1 is

  • y2 + 1 = y1 + ex2

  • y2 - 1 = ylog1 + ex2

  • y + 1 = ylog1 + ex2

  • 2y2 +1 = ylog1 + ex2


B.

y2 - 1 = ylog1 + ex2

Given equation is 1 + y2y2dy = ex1 + exdx 1y2 + 1dy = ex1 + exdx - 1y + y = log1 + ex + C passes through 0, 1 - 1 +1 = log2 +C = - log2equation of curve y - 1y = log1 + ex - log2

 y2 - 1 = ylog1 + ex2


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14.

If y2 + logcos2x = y then

  • y''0 = 2

  • y'0 + y''0 = 1

  • y'0  + y''0 = 3

  • None of these


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15.

Evaluate  - πππ - xdx

  • π2

  • π22

  • π23

  • π24


16.

215 + 518 has integral terms find least value of n is

  • 256

  • 257

  • 258

  • 259


17.

The area in sq unit of the region x, y; 12  y  sinx, 0  x  πis equal to

  • 3 - 2π

  • 3 - π6

  • 3 - π3

  • 3 - π3


18.

A bag contains 6 red and 10 green balls, 3 balls are drawn from it one by one without replacement. If the third ball drawn is red, then the probability, that first two balls are green is

  • 37

  • 9149

  • 956

  • 38


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 Multiple Choice QuestionsShort Answer Type

19.

limx01 - cosx221 - cosx24x8 = 2 - k, find k


20.

The value of 0 . 16log2 . 513 + 132 + 133 + ...  is


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