what are deleted portions

UNIT I-NUMBER SYSTEMS

           Chapter

Topics

REAL NUMBERS

Euclid’s division lemma

UNIT II-ALGEBRA

           Chapter

Topics

POLYNOMIALS

Statement and simple problems on division algorithm for polynomials with real coefficients.

PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

cross multiplication method

QUADRATIC EQUATIONS

Situational problems based on equations reducible to quadratic equations

ARITHMETIC PROGRESSIONS

Application in solving daily life problems based on sum to n terms

UNIT III-COORDINATE GEOMETRY

           Chapter

Topics

COORDINATE GEOMETRY

Area of a triangle

UNIT IV-GEOMETRY

           Chapter

Topics

TRIANGLES

Proof of the following theorems are deleted  

· The ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides.  

· In a triangle, if the square on one side is equal to sumof the squares on the other two sides, the angle opposite to the first side is a right angle.

CIRCLES

No Deletion

CONSTRUCTIONS

Construction of a triangle similar to a given triangle.

UNIT V- TRIGONOMETRY

           Chapter

Topics

INTRODUCTION TO TRIGONOMETRY

Motivate the ratios whichever are defined at 0^o and 90^o

TRIGONOMETRIC IDENTITIES

Trigonometric ratios of complementary angles

HEIGHTS AND DISTANCES

No deletion

UNIT VI-MENSURATION

AREAS RELATED TO CIRCLES

Problems on central angle of 120°

SURFACE AREAS AND VOLUMES

Frustum of a cone

UNIT VI-STATISTICS & PROBABILITY

           Chapter

Topics

STATISTICS

· Step deviation Method for finding the mean  

· Cumulative Frequency graph

PROBABILITY

No deletion