## What is sine used for in real life?

Sine and cosine functions can be used to model many real-life scenarios – radio waves, tides, musical tones, electrical currents.

**Why do we use arc sin?**

Arcsine is the inverse of sine function. It is used to evaluate the angle whose sine value is equal to the ratio of its opposite side and hypotenuse. Therefore, if we know the length of opposite side and hypotenuse, then we can find the measure of angle.

### What are some real life examples of the graphs of sine and cosine in the real world?

In real life, sine and cosine functions can be used in space flight and polar coordinates, music, ballistic trajectories, and GPS and cell phones.

**Who uses trigonometry in real-life?**

Trigonometry spreads its applications into various fields such as architects, surveyors, astronauts, physicists, engineers and even crime scene investigators.

## What are the uses of sine cosine and tangent in real-life?

You can even use trig to figure out the angles the sun will shine into a building or room. Construction workers also use sine, cosine, and tangent in this way. They need to measure the sizes of lots, roof angles, heights of walls and widths of flooring, and even more.

**How do you write arcsin?**

y = arcsine of x = arcsin(x) = sin-1(x). Another way to write x = sin(y).

### How useful are the laws of sine and cosine in our daily life?

Many real-world applications involve oblique triangles, where the Sine and Cosine Laws can be used to find certain measurements. It is important to identify which tool is appropriate. The Cosine Law is used to find a side, given an angle between the other two sides, or to find an angle given all three sides.

**How do you take arcsin?**

arcsin(x) = π/2 – arccos(x)

## How does NASA use trigonometry?

Astronomers use trigonometry to calculate how far stars and planets are from Earth. Even though we know the distances between planets and stars, this mathematical technique is also used by NASA scientists today when they design and launch space shuttles and rockets.