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square numbers maths

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          SQUARES AND SQUARE ROOTS   Square number - The square of a number is the product of the number with the number itself.  A given number is a perfect square if its prime factors can be expressed in pairs of equal factors.  A perfect square number is never negative. For example - 8^2 = (8×8) = 64 Facts About Squares -  1. A number ending in 2, 3, 7 or 8 is never a perfect square.  2. A number ending in an odd number of zeros is never a perfect square.  3. The square of an even number is always even.  4. The square of an odd number is always odd.  5. The ending digits of a square number is 0, 1, 4, 5, 6, or 9 only.  Note:- It is not necessary that all numbers ending with digits 0, 1, 4, 5, 6, or 9 are square numbers.  Important Facts-  1. Numbers ending in an even number of zeros are not necessarily perfect squares. Eg- 3700, 290000, 47000000.   Practice Questio...
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A list of Collective Nouns

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Learn them and write in your notebook to learn English Easily. Helpful for exams.  Collective Nouns  1. A galaxy of stars  2. An army of soldiers  3. A bouquet of flowers  4. A band of musicians  5. A range of hills  6.A batch of boys  7. A Grove of trees 8. A bundle of sticks  9. A swarm of ants  10. A bunch of keys or bananas  11. A flight of stairs  12. A bunch of grapes or flowers  13. A troop of horseman 14. A class of students  15. A team of players or bullocks  16. A catalogue of books  17. A party of friends  18. A crowd of people  19. A series of events  20. A flock of sheep, birds or goats  21. A nests of birds  22. A group of persons  23. A crew of sailors  24. A gang of robbers or thieves  25. A heap of sand  26. A shower of rains  27. A hive of bees 28. A choir of singers  29 A herd of cattle, sheep o...
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Polynomials

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              POLYNOMIALS Monomial - Polynomial having one term.  Binomial - Polynomial having two terms.  Trinomial - Polynomial having three terms Zero Polynomial - Polynomial having all its coefficient zero.  Constant Polynomial - A polynomial having only a single term ( of real number).  Standard form - Powers of x are either in increasing or decreasing order.  1. A parallelogram whose all sides are equal is called a rhombus.  2. A quadrilateral is called a square if all of its sides are equal and all of its angles are equal.  3. A quadrilateral which has one pair of opposite sides parallel is called a trapezium.  4. A square is a rectangle.  5. A square is a rhombus.  6. A parallelogram is a trapezium but converse is not true.  7. A rectangle ( Or rhombus) is not a square.                   Thanks for visiting 
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