Science SA 2 Class 09 CBSE Board – 2016 Last Year Papers Download PDF File SA 2 – Science Class 9 2016 Download PDF File SA 2 – Science Class 9 2016 Science SA 1 Class 09 CBSE Board – 2016 Last Year Papers Download PDF File SA 1 – Science Class 9 2015 Download […]

# CBSE 2016 : Datesheet, Syllabus, Sample Papers, Test Papers & Result

## Science Class 9 Syllabus – 2017-2018

Science Class 9 Syllabus – 2017-2018 Download PDF File Science Class 9 Syllabus Course Structure First Term Units Marks I. Matter – Its Nature & Behaviour 29 II. Organisation in Living World 18 III. Motion, Force and Work 30 V. Food; Food Production 13 Total 90 Second Term Units Marks I. Matter – Its Nature […]

## Class IX Mathematics (Circles) R.D Sharma Solutions

Page 16.5 Ex. 16.1 Q1. Answer : (i) All points lying inside or outside a circle are called interior points or exterior points. Let the point P, Q and R are lie inside, outside or on the circle C(O, r) in such a way as given in the figure Thus the answer is (ii) Given […]

## Heron’s Formula, Class 9 Mathematics R.D Sharma Solutions

Page 12.8 Ex. 12.1 Q1. Answer : Whenever we are given the measurement of all sides of a triangle, we basically look for Heron’s formula to find out the area of the triangle. If we denote area of the triangle by A, then the area of a triangle having sides a, b, c and s […]

## Areas of Parallelograms and Triangles, Class 9 Maths R.D Sharma Solutions

Page. 15.3 Ex.15.1 Q1. Answer : GIVEN: Here in the question figure 1 to 6 are shown. To Find : (1) The figures which lie on the same base and between the same parallels. (2) Write the common base and parallels. As we know that ‘Two geometric figures are said to be on the same […]

## Quadrilaterals, Class 9 Mathematics R.D Sharma Solutions

Page 14.4 Ex. 14.1 Q1. Answer : Let the measure of the fourth angles be x°. We know that the sum of the angles of a quadrilateral is 360°. Therefore, Hence the measure of the fourth angle is . Q2. Answer : We have ,. So, let , , And By angle sum property of […]

## Linear Equations in Two Variables, Class 9 Maths R.D Sharma Solutions

Page 13.3 Ex. 13.1 Q1. Answer : (i) We are given –2x + 3y – 12 = 0 Comparing the given equation with ,we get a=–2; b = 3; c = –12 (ii) We are given Comparing the given equation with ,we get (iii) We are given Comparing the given equation with ,we get (iv) We are given Comparing the given equation with ,we get (v) We […]

## Coordinate Geometry, Class 9 Maths R.D Sharma Solutions

Page 11.6 Ex. 11.1 Q1. Answer : The following points are given below. (i) (ii) (iii) (iv) (v) (vi) (vii) (viii) (ix) (x) Letand be the coordinate axes. (i) Here for the given point the abscissa is 2 units and ordinate is 5 units. The point is in the first quadrant. So it will look like […]

## Number System, Class 9 Mathematics R.D Sharma Solutions

Page 1.12 Ex. 1.2 Q1. Answer : (i) Given rational number is Now we have to express this rational number into decimal form. So we will use long division method as below. Hence, (ii) Given rational number is Now we have to express this rational number into decimal form. So we will use […]

## Probability, Class 9 Mathematics R.D Sharma Solutions

Page no. 25.16 Formative Assessment_VSA Q1. Answer : What is the meaning of trial? The word trial means a test of performance, qualities, or suitability. Definition: Any particular performance of a random experiment is called a trial. That is, when we perform an experiment it is called a trial of the experiment. By experiment or trial, […]

## Introduction to Euclid’s Geometry, Class 9 Maths R.D Sharma Solutions

Page no. 7.8 Ex. 7.1 Q1. Answer : The given problem requires definitions of various terms. (i) Line segment: A line segment AB can be defined as the part of the line with end points A and B, whereA and B are the two points of the line. It is denoted by Let us take a line […]

## Company – Accounting For Share Capital, Class 12 Accounts

Accounting For Share Capital, Introduction (Accounts Class 12th) Accounting For Share Capital, Illustration-1 Page 7.16 – (T.S Grewal Accounts Class 12th) Accounting For Share Capital, Illustration-3 Page 7.17 – (T.S Grewal Accounts Class 12th) Accounting For Share Capital, Introduction (Accounts Class 12th) Accounting For Share Capital, Partnership & Joint Stock Company (Accounts Class 12th) Accounting […]

## Polynomials, Class 9 Mathematics R.D Sharma Solutions

Algebraic Identities Page no. 4.11 Ex. 4.2 Q1. Answer : In the given problem, we have to find expended form (i) Given We shall use the identity By applying in identity we get Hence the expended form of is (ii) Given We shall use the identity Here By applying in identity we get Hence the […]

## Probability, Class 12 Mathematics R.D Sharma Solutions

Page 31.16 Ex. 31.1 Q1. Answer : Sample space, S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} Consider the given events. A = An even number on the card B = A number more than 3 on the card Clearly, A = {2, 4, 6, 8, 10} B = {4, 5, 6, 7, […]

## Three Dimensional Geometry, Class 12 Mathematics R.D Sharma Solutions

DIRECTION COSINES & DIRECTION RATIOS Page 27.22 Ex. 27.1 Q1. Answer : Let the direction cosines of the line be l, m, n. Now, l = cos900 = 0m = cos600 = 12n = cos300 = 32Therefore, the direction cosines of the line are 0, 12, 32. Q2. Answer : Let the direction cosines of the line […]

## Vector Algebra, Class 12 Mathematics R.D Sharma Solutions

ALGEBRA OF VECTORS Page 23.4 Ex. 23.1 Q1. Answer : (i) The vector OP→ represents the required displacement vector. (ii) The vector OQ→ represents the required vector. (iii) The vector OR→ represents the required vector. Q2. Answer : The quantities which have only magnitude and which are not related to any fixed direction in space […]

## Differential Equations, Class 12 Mathematics R.D Sharma Solutions

Page 22.4 Ex. 22.1 Q1. Answer : In this differential equation, the order of the highest order derivative is 3 and its power is 1. So, it is a differential equation of order 3 and degree 1. It is a non-linear differential equation because the differential coefficient dxdt has exponent 2, which is greater than […]

## Applications Of Integrals, Class 12 Mathematics R.D Sharma Solutions

Page 21.13 Ex.21.1 Q1. y2=8x represents a parabola with vertex at origin and axis of symmetry along the +ve direction of x-axisx=2 is line parallel to y-axisLet (x, y) be a given point on the parabola , y2=8xSince parabola y2=8x is symmetric about x-axis ,∴Required area =2 area OCAO On slicing the area above […]