Subject

Mathematics

Class

ICSE Class 12

Pre Boards

Practice to excel and get familiar with the paper pattern and the type of questions. Check you answers with answer keys provided.

Sample Papers

Download the PDF Sample Papers Free for off line practice and view the Solutions online.
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 Multiple Choice QuestionsLong Answer Type

31.

Verify Lagrange's Mean Value Theorem for the following function:

f(x) = 2sinx + sin2x on 0, π


32.

Find the equation of hyperbola whose foci are (0, ±10) and passing through the point (2, 3).


33.

Show that the rectangle of maximum perimeter which can be inscribed in a circle o radius 10 cm is a square of side 102 cm.


34.

Evaluate: secx1 + cscxdx


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35.

Solve the differential equation:

exy1 - xy + 1 +exydxdy = 0, when x = 0, y = 1


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36.

Using vectors, prove that angle in a semicircle is a right angle.


Let O be the centre of the circle and AB be the diameter.. C is a point of circumference Take O as the origin and let OA¯ = a and OC¯ = c

CA = OA - OC = a - c

CB = OB - OC = - a - c

CA.CB = a - c- a - c

          = - a.a - a.c + c.a + c.c

          = - a2 + c2

          = - r2 + r2 = 0, where r is a radius.

Therefore, angle ACB is a right angle.


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37.

Box I contains two white and three black balls. Box II contains four white and one black balls and box III contains three white and four black balls. A dice having three red, two yellow, and one green face, is thrown to select the box. If red face turns up, we pick up box I, if yellow face turns up, we pick up box II, otherwise we pick up box III. Then, we draw a ball from the selected box. If the ball drawn is white, what is the probability that the dice had turned up with a red face?


38.

Five dice are thrown simulteneously. If the occurence of an odd number in a single dice is considered a success, find the probability of maximum three successses.


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