Roman Numerals 1 to 100 and 100 to 1000 An ancient system of writing numbers used by Romans, is called Roman Numerals.  The symbol of 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 in roman numerals are,               Number               Roman Numerals       […]

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Trigonometric Ratios of Some Specific Angles Trigonometric Ratios      Here are Trigonometric Ratios of some Specific angles,   00, 300, 450 , 600  and 900. Example: (1) Find the value of sin600 cos300 + sin300 cos600 Values of Trigonometric Ratios from above table,                        sin 600 = √3/2,                       […]

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Highest Common Factor Definition:   The “Highest Common Factor” (HCF) of two or more numbers is the highest or greatest of their common factors. The HCF of 20, 50, and 30 can also be found by factorization of these numbers as follows, Therefore,                         20 = 2 x 2 x 5   […]

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