## Posts Tagged ‘Identity’

Reading some of the Lev Kourliandtchik books, I’ve found a tricky observation how to write this gigantic expression in an extremely simple, with number of square roots. It’s easy to check that and using that equality we have cool, huh? 🙂 Advertisements

Filed under: Identity, Mathematics, Science | 5 Comments

Tags: 2, cos, cosinus, form, Identity, roots, sequence, short, square

### Identities NO. 3 : Trigonometric

30Dec07

For , we do have \ Trigonometrics

Filed under: Identity, Mathematics, Science | 7 Comments

Tags: Identity, tangent, triangle, trigonometry

First identity comes from Lebesgue: and the second one from Euler:

Filed under: Identity, Mathematics, Science | 1 Comment

Tags: algebra, euler, Identity

### Identity NO. 1 : Algebra

18Sep07

Today used all my fuel resources for the next week. But lucky in Katowice I’ve learned something extremely beautiful. Truth is the following identity: Pretty cool, huh? It’s easy to get from the right side to the left side, but the inverse way doesn’t look that easy. But it is J. All you got to […]

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Tags: algebra, Identity, math, mathematic