# Trigonometric Calculator

## Calculus trig_calculator

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### Function : trig_calculator

#### Summary :

Calculator wich uses trigonometric formula to simplify trigonometric expression.

Trig_calculator online

#### Description :

This calculator allows through various trigonometric formula to calculate trigonometric expression. Trignometric expressions are expressions that involve sine functions, cosine functions , tangent function ...

# Simplify a trigonometric expression

To simplify trigonometric expressions, the calculator uses various formulas of trigonometry, here are some examples of formulas trigonometric used by the calculator:

• cos(-x)=cos(x)
• sin(-x)=-sin(x)
• tan(-x)=-tan(x)
• cos(x+pi/2)=-sin(x)
• sin(x+pi/2)=cos(x)
• tan(x+pi/2)=1/tan(x)
• cos(x+pi)=-cos(x)
• sin(x+pi)=-sin(x)
• tan(x+pi)=tan(x)

This is only a small example of the many trigonometric formulas used by this trigonometric calculator.

When the calculator simplifies a trigonometric expression, it indicate the formulas used to arrive at the result, in the section reserved for the detail of the calculations.

To simplify a trigonometric expression, enter the expression to simplify and apply the trig_calculator function. Thus, for the simplification of the following expression cos(x+pi)+2*sin(x), enter trig_calculator(cos(x+pi)+2*sin(x)) , after calculation the simplified form of the trigonometric expression is returned.

This other example shows how to calculate the trigonometric expression cos(pi-x) trig_calculator(cos(pi-x))

The trigonometric calculator can simplify alphanumeric expressions but also purely numerical expressions.

Calculator wich uses trigonometric formula to simplify trigonometric expression.

#### Syntax :

trig_calculator(expression), where expression represents the trigonometric expression to be simplified.

#### Examples :

trig_calculator(cos(x+pi)) returns -cos(x)

Calculate online with trig_calculator (Trigonometric Calculator)