# What is sine cosine tangent?

## What is sine cosine tangent?

sin = o / h. The ratio of the adjacent side of a right triangle to the hypotenuse is called the cosine and given the symbol cos. cos = a / h. Finally, the ratio of the opposite side to the adjacent side is called the tangent and given the symbol tan.

### What is sine cosine and tangent used for?

Sine, cosine, and tangent are all trigonometric functions that can be used to help you find the angles or lengths of a triangle.

What does sine cosine?

Sine and cosine — a.k.a., sin(θ) and cos(θ) — are functions revealing the shape of a right triangle. Looking out from a vertex with angle θ, sin(θ) is the ratio of the opposite side to the hypotenuse , while cos(θ) is the ratio of the adjacent side to the hypotenuse .

Is tangent sin over COS?

Each of these functions are derived in some way from sine and cosine. The tangent of x is defined to be its sine divided by its cosine: tan x = sin x cos x . The secant of x is 1 divided by the cosine of x: sec x = 1 cos x , and the cosecant of x is defined to be 1 divided by the sine of x: csc x = 1 sin x .

## How do you use tangent?

The tangent function, along with sine and cosine, is one of the three most common trigonometric functions. In any right triangle, the tangent of an angle is the length of the opposite side (O) divided by the length of the adjacent side (A). In a formula, it is written simply as ‘tan’.

### What is the difference between tangent and sine?

tangent | sine |. is that tangent is (geometry) a straight line touching a curve at a single point without crossing it there while sine is (trigonometry|mathematics) in a right triangle, the ratio of the length of the side opposite an angle to the length of the hypotenuse.

What is the relationship between sine and cosine?

The relationship between the cosine and sine graphs is that the cosine is the same as the sine — only it’s shifted to the left by 90 degrees, or π /2. The trigonometry equation that represents this relationship is Look at the graphs of the sine and cosine functions on the same coordinate axes,…

What is the difference between sine and cosecant?

is that cosecant is (trigonometry) in a right triangle, the reciprocal of the sine of an angle symbols: cosec, csc while sine is (trigonometry|mathematics) in a right triangle, the ratio of the length of the side opposite an angle to the length of the hypotenuse. cosecant. English. Noun.

## What do you use sine and cosine for?

Sine and cosine are used to separate a vector into its components in rectangular coordinates (x and y). This is important in mechanics, where vectors such as velocity and acceleration can be resolved into 2 perpendicular components. Sine and cosine are used to convert polar coordinates into cartesian coordinates.