# [*Important] Maths Notes Shobit Nirwan Class 10

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Hey Guys! If you are searching for Mathematics Notes For Class 10 by Shobit Nirwan. Then you are on the right website, Here we have provided Math Important Notes OF CBSE Class 10. These notes are made by Shobit Nirwan.

## Chapterwise Handwritten Notes of Math Class 10

Here are the Chapterwise handwritten Notes of Class 10 Mathematics written by Shobit Nirwan.

## Class 10 Math Handwritten Notes by Shobit Nirwan

### Real Number Notes Class 10

Topics Covered in The Notes

• Euclid’s division lemma
• Fundamental Theorem of Arithmetic – statements after reviewing work done earlier and after illustrating and motivating through examples,
• Proofs of the irrationality of √2, √3, √5
• The decimal representation of rational numbers in terms of terminating/non-terminating recurring decimals

### Polynomials Notes Class 10

Topics Covered in The Notes

• Zeros of a polynomial
• Relationship between zeros and coefficients of quadratic polynomials.
• Statement and simple problems on division algorithms for polynomials with real coefficients.

### Pair of Linear Equation in two variables Notes Class 10

Topics Covered in The Notes

• Pair of linear equations in two variables and graphical method of their solution,
• consistency/inconsistency
• Algebraic conditions for the number of solutions.
• The solution of a pair of linear equations in two variables algebraically – by substitution, by elimination, and by cross multiplication method.
• Simple situational problems. Simple problems on equations are reducible to linear equations.

### Quadratic Equations Notes Class 10

Topics Covered in The Notes

• Standard form of a quadratic equation ax2 + bx + c = 0, (a ≠ 0).
• Solutions of quadratic equations (only real roots) by factorization; and by using the quadratic formula.
• Relationship between discriminant and nature of roots.
• Situational problems based on quadratic equations related to day-to-day activities to be incorpoated.

### Arithmetic Progression Notes Class 10

Topics Covered in The Notes

• Motivation for studying Arithmetic Progression
• Derivation of the nth term and sum of the first n terms of A.P. and their application in solving daily life problems.

### Triangles Notes Class 10

Topics Covered in The Notes

Definitions, examples, counter-examples of similar triangles-

• If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points, the other two sides are divided in the same ratio.
• If a line divides two sides of a triangle in the same ratio, the line is parallel to the third side.
• If in two triangles, the corresponding angles are equal, their corresponding sides are proportional and the triangles are similar.
• If the corresponding sides of two triangles are proportional, their corresponding angles are equal and the two triangles are similar.
• If one angle of a triangle is equal to one angle of another triangle and the sides including these angles are proportional, the two triangles are similar.
• If a perpendicular is drawn from the vertex of the right angle of a right triangle to the hypotenuse, the triangles on each side of the perpendicular are similar to the whole triangle and to each other.
• The ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides.
• In a right triangle, the square on the hypotenuse is equal to the sum of the squares on the other two sides.
• In a triangle, if the square on one side is equal to the sum of the squares on the other two sides, the angle opposite to the first side is a right angle.

### Coordinate Geometry Notes Class 10

Topics Covered in The Notes

• Concepts of coordinate geometry, graphs of linear equations.
• Distance formula.
• Section formula (internal division).
• Area of a triangle.

### Introduction to Trigonometry Notes Class 10

Topics Covered in The Notes

• Trigonometric ratios of an acute angle of a right-angled triangle.
• Proof of their existence (well defined);
• motivate the ratios whichever are defined at 0o and 90o.
• Values of the trigonometric ratios of 300, 450, and 600.
• Relationships between the ratios. Proof and applications of the identity sin2A + cos2A = 1.
• Trigonometric ratios of complementary angles.

### Some Application of Trigonometry Notes Class 10

Topics Covered in The Notes

• Simple problems on heights and distances.
• Problems should not involve more than two right triangles.
• Angles of elevation/depression should be only 30°, 45°, 60°.

### Circles Note Class 10

Topics Covered in The Notes

• Tangent to a circle at, point of contact.
• (Prove) The tangent at any point of a circle is perpendicular to the radius through the point of contact.
• (Prove) The lengths of tangents drawn from an external point to a circle are equal

### Constructions Note Class 10

Topics Covered in The Notes

• Division of a line segment in a given ratio (internally).
• Tangents to a circle from a point outside it.
• Construction of a triangle similar to a given triangle.

### Areas Related to Circles Notes Class 10

Topics Covered in The Notes

• Motivate the area of a circle; area of sectors and segments of a circle.
• Problems based on areas and perimeter/circumference of the above-said plane figures. (In calculating the area of a segment of a circle, problems should be restricted to the central angle of 60°, 90° and 120° only. Plane figures involving triangles, simple quadrilaterals and circles should be taken.)

### Surface Areas and Volumes

Topics Covered in The Notes

• Surface areas and volumes of combinations of any two of the following: cubes, cuboids, spheres, hemispheres and right circular cylinders/cones.
• Frustum of a cone.
• Problems involving converting one type of metallic solid into another and other mixed problems. (Problems with combinations of not more than two different solids are taken)

### Statistics Notes Class 10

Topics Covered in The Notes

• Mean, median and mode of grouped data (bimodal situation to be avoided).
• Cumulative frequency graph.

### Probability Notes Class 10

Topics Covered in The Notes

• The classical definition of probability.
• Simple problems on finding the probability of an event. 