# CBSE Question Paper 2009 class 12 Mathematics ## myCBSEguide App

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CBSE Question Paper 2009 class 12 Mathematics conducted by Central Board of Secondary Education, New Delhi in the month of March 2009. CBSE previous year question papers with solution are available in myCBSEguide mobile app and cbse guide website. The Best CBSE App for students and teachers is myCBSEguide which provides complete study material and practice papers to cbse schools in India and abroad.

CBSE Question Paper 2009 class 12 Mathematics ## Class 12 Mathematics list of chapters

1. Relations and Functions
2. Inverse Trigonometric Functions
3. Matrices
4. Determinants
5. Continuity and Differentiability
6. Application of Derivatives
7. Integrals
8. Application of Integrals
9. Differential Equations
10. Vector Algebra
11. Three Dimensional Geometry
12. Linear Programming
13. Probability

## CBSE Question Paper 2009 class 12 Mathematics

### General Instruction:

• All question are compulsory.
• The question paper consists of 29 questions divided into three section A, B and C. Section A comprises of 10 questions of one mark each, Section B comprises of 12 questions of four marks each and Section C comprises of 7 questions of six marks each.
• All question in Section A are to be answered in one word, one sentence or as per the exact requirement of the questions.
• There is no overall choice. However, internal choice has been provided in 4 questions of four marks each and 2 questions of six marks each. You have to attempt only one of the alternatives in all such questions.
• Use of calculators is not permitted.

### Section A

1. Find the value of x, if 2. Let be a binary operation on N given by a b = HCF (a, b), a, Write the value of 22 4.

3. Evaluate: 4. Evaluate: 5. Write the principal value of .

6. Write the value of the following determinant: 7. Find the value of x from the following: 8. Find the value of p if 9. Write the direction cosines of a line equally inclined to the three coordinate axes.

10.  If is a unit vector and then find .

### Section B

11.  The length x of a rectangle is decreasing at the rate of 5 cm/minute and the width y is increasing at the rate of 4cm/minute. When (b) the area of the rectangle.

OR

Find the intervals in which the function f given by  Is strictly increasing or strictly decreasing.

12.  If sing y = x sin (a + y), prove that ### OR

If find 13.  Let be defined by for all 14.  Evaluate: ### OR

Evaluate: 15.  If Show that 16.  On a multiple choice examination with three possible answers (out of which only one is correct) for each of the five questions, what is the probability that a candidate would get four or more correct answers just by guessing ?

17.  Using properties of determinants, prove the following: 18.  Solve the following differential equation: 19.  Solve the following differential equation: 20.  Find the shortest distance between the following two lines:  21.  Prove the following:  ### OR

Solve for x: 22.  The scalar product of the vector with the unit vector along the sum of vectors and is equal to one. Find the value of .

### Section C

23.  Find the equation of the plane determined by the points A(3, -1, 2), B(5, 2, 4) and C(-1, -1, 6). Also find the distance of the point P(6, 5, 9) from the plane.

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

25.  Evaluate: 26.  Using matrices, solves the following system of equations:

X + y + z = 6

X + 2z = 7

3x + y + z = 12

### OR

Obtain the inverse of the following matrix using elementary operations: 27.  Coloured balls are distributed in three bags as shown in the following table:

 Bag Colour of the ball Black White Red I 1 2 3 II 2 4 1 III 4 5 3

A bag is selected at random and then two balls are randomly drawn from the selected bag. They happen to be black and red. What is the probability that they came from bag I ?

28. A dealer wishes to purchase a number of fans and sewing machines. He has only Rs. 5,760 to invest and has a space for at most 20 items. A fan costs him Rs. 360 and a sewing machine Rs. 240. His expectation is that he can sell a fan at a profit of Rs. 22 and sewing machine at a profit of Rs. 18. Assuming that he can sell all the items that he can buy, how should he invest his money in order to maximize the profit ? Formulate this as a linear programming problem and solve it graphically.

29. If the sum of the length of the hypotenuse and a side of a right-angled triangle is given, show that the area of the triangle is maximum when the angle between them is OR

A manufacturer can sell x items at a price of Rs. each. The cost price of x items is Rs. Find the number of items he should sell to earn maximum profit.

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## Previous Question Paper for Class 12 Mathematics

Download class 12 Mathematics question paper with solution from best CBSE App the myCBSEguide. CBSE class 12 Mathematics question paper 2009 in PDF format with solution will help you to understand the latest question paper pattern and marking scheme of the CBSE board examination. You will get to know the difficulty level of the question paper. CBSE question papers 2009 for class 12 Mathematics have 29 questions with solution.

## Last Year Question Paper 2009

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