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Class — X, DELETED SYLLABUS, (For the Session of 2020-21 Only), MATHEMATICS, (THEORY), , UNIT I: NUMBER SYSTEMS., , 1, REAL NUMBERS, Euclid's division lemma., , UNIT IL: ALGEBRA, , 1, POLYNOMIALS, Statement and simple problems on division algorithm for polynomials with real, coefficients., , 2, PAIR OF LINEAR EQUATIONS IN TWO VARIABLES, Cross multiplication,, , UNIT IIL: TRIGONOMETRY, , 1. INTRODUCTION TO TRIGONOMETRY, Motivate the ratios, whic re defined at 0°& 90°, , 2, TRIGONOMETRIC IDENTITIES, ‘Trigonometric ratios of complementary angles., , UNIT IV : COORDINATE GEOMETRY, , 1, LINES (In two-dimensions), Area of a triangle., , , , , , , , UNIT V : GEOMETRY, , , , , , , , , 1, ratio of the areas of two similar triangles is equal to the ratio of the, squares on their corresponding sides., © (Prove) Ina triangle, if the square on one side is equal to sum of the, the other two sides, the angles opposite to the first side is a right traingle., 3. CONS, , , , © Construction of a triangle similar to a given triangle, , UNIT VI: MENSURATION, , 1, AREAS RELATED TO CIRCL, 120°, , 2, SURFACE AREAS AND VOLUMES, (i) Frustum of a cone., , UNIT V!, 1, , , , Ss, , , , , , STATISTICS AND PROBABILITY, 1c!, , , , quency graph.