Trigonometry formulas


Trigonometry formulas for solving mathematical problems. Basic trigonometric identities, double-angle formulas, power-down formulas, addition, subtraction and multiplication, and other formulas. In addition, the values of trigonometric functions for the most common angles are given.

Basic identities

... preparation ...

Double-angle formulas

... preparation ...

Three-angle formulas

... preparation ...

Formulas
for reducing the degree

... preparation ...

Formulas
for reducing the degree

... preparation ...

Formulas
for reducing the degree

... preparation ...

Half-argument formulas

The reduction formulas of
the degree of the half argument

... preparation ...

Addition formulas

... preparation ...

The subtraction formulas

... preparation ...

The formulas for converting
a sum into product formulas

... preparation ...

The formulas for converting
the difference into product formulas

... preparation ...

The sum conversion formulas

... preparation ...

The formulas for transforming
a product into sum and difference formulas

... preparation ...

Formulas for transforming
a product of functions to a power

... preparation ...

Formulas for reducing the degree

... preparation ...

Universal trigonometric substitution

... preparation ...


The values of trigonometric functions

α 0
α° 30° 45° 60° 90° 120° 135° 150° 180° 210° 225° 240° 270° 300° 315° 330° 360°
sin α 0 1 0 −1 0
cos α 1 0 −1 0 1
tg α 0 1 −1 0 1 −1 0
ctg α 1 0 −1 1 0 −1


Download trigonometric formulas

You can download trigonometric formulas in the form of a picture:


Share this link: