Formula lowering natural degree of trigonometric functions in integral calculus.
Mironenko L.P., Pustovaya Yu.V.
The purpose of the article is to advance the natural degree decreased formulas of the functions and to different branches of mathematics, especially, to integration calculus. The formulas allow more effective integrate the special form of rational fractions. It is obtained a new representation of Vallice’s formula for the number . The decreased formulas give many new trigonometric identities, at least, the general methodic for construction a great number of new trigonometric equalities.
