Final Cover - For Printing

Rectangle In a quadrilateral, if the opposite sides are equal and all the four angles are equal to 90 o or a right angle then i ...

Therefore, area of quadrilateral ABCD = Area of ABC + Area of ACD =^12 ×^ d^ ×^ h 1 +^12 ×^ d^ ×^ h 2 square units = 21 d (h 1 + ...

Module 73 SIMPLE INTEREST Principal Principal is the sum of money lent or invested on which the interest is paid. The concept o ...

Principal is the sum of money borrowed. Interest is the additional money to be given. Amount to be returned = Principal + Intere ...

Interest on 100 units for one year = r Therefore, interest on ‘p’ units for one year Interest on ‘p’ units for ‘n’ years 100 pr ...

so accurately for calculation of the interest. In calculation of the number of days in a specified period, the following points ...

Finding the day of the week If the day of a particular date is given, then the day of a later date can be found out. For this p ...

Module 74 : Sets SETS Set Language George Ferdinand Ludwig Philip Cantor (1845-1918), a German mathematician developed the conce ...

The idea of element may be explained to the child orally with adequate examples. Well Defined Set A set in which the elements c ...

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Infinite Set A set with uncountable number of elements is said to be an infinite set. In other words, if the cardinal number of ...

The concept of null set can be explained orally. If the child is not able to understand the concept still, provide the child wit ...

Considering the set of vowels in the English alphabet again, if B denotes this set, then in set builder form the set is denoted ...

The child with visual impairment can be assisted to understand this concept, with the provision of a set of objects and the grou ...

The idea of improper set can also be explained to the child orally, supported by tactile material depicting the sets. Complemen ...

Singleton Set A set with only one element is said to be a singleton set. Eg. : B = {4} Here, n(B) = 1, and hence B is a single ...

Intersection of Sets If A and B are any two sets, then the intersection of these two sets denoted as A^ ∩^ B is the set of elem ...

In the above two sets, as no element is common and hence the sets A and B are non- overlapping sets. To enable the child to unde ...

Eg. : If A = {1, 2, 3} B = {3, 4, 5} Then A - B = {1, 2} Also, B – A = {4, 5} ∴ AΔB = (A-B) ∪^ (B-A) = {1, 2, 4, 5} Cartesian p ...

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