## What are the six functions of trigonometry?

There are six functions of an angle commonly used in trigonometry. Their names and abbreviations are sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (csc).

## Which are the trigonometric functions?

The trigonometric functions most widely used in modern mathematics are the sine, the cosine, and the tangent. Their reciprocals are respectively the cosecant, the secant, and the cotangent, which are less used.

## What is trigonometric function in math?

trigonometric function, In mathematics, one of six functions (sine, cosine, tangent, cotangent, secant, and cosecant) that represent ratios of sides of right triangles. … The fundamental trigonometric identity is sin2θ + cos2θ = 1, in which θ is an angle.

## How do you multiply sin functions?

How to Multiply through a Trig Equation with Another Function
1. Multiply each term by sin x. Why sin x? …
2. Subtract sin x from each side to set the equation equal to 0. 2sin2 x – sin x – 1 = 0.
3. Factor the quadratic equation. …
4. Set each factor equal to 0.
5. Solve for the values that satisfy the equations.

## How do you solve trigonometric identities?

5 strategies you can use to solve TRIG IDENTITIES
1. Multiply the denominator by a CONJUGATE.
2. Get a COMMON DENOMINATOR.
3. SPLIT UP A FRACTION into two separate fractions.
4. Rewrite everything in terms of SINE AND COSINE.

## How many trigonometric identities are there?

The 36 Trig Identities You Need to Know. If you’re taking a geometry or trigonometry class, one of the topics you’ll study are trigonometric identities.