Doza.pro

# 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 ...

## The reduction formulas of the degree of the half argument

... preparation ...

... 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° 0° 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 −