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CBSE Papers : Learn Basic Formulas of Algebra for Math Preparation

Wednesday, November 14th, 2007

Factors and expansions
(a, b real; n positive integer) 
(a ± b)² = a² ± 2ab + b²
(a ± b)³ = a³ ± 3a²b + 3ab² ± b³
(a ± b)4 = a4 ± 4a³b + 6a²b² ± 4ab³ + b4
a² - b² = (a - b)(a + b)
a² + b² = (a - bi)(a + bi)
a³ […]

CBSE Papers : Learn the Formulas of Geometry

Monday, November 5th, 2007

Like many other science subjects, Geometry has developed to its present form with the help of contributions from many renowned mathematicians who devoted all their life understanding and developing this science. Pythagoras is among the first few names that come to our mind with the mention of this particular subject. Geometry was initially considered a […]

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