Table of Contents

## What are the characteristics of the graphs of the sine and cosine functions?

The sine and cosine functions have several distinct characteristics:

- They are periodic functions with a period of.
- The domain of each function is and the range is.
- The graph of is symmetric about the origin, because it is an odd function.
- The graph of is symmetric about the axis, because it is an even function.

**How do you determine if a graph is sine or cosine?**

In a cosine graph, a positive or negative number vertically flips the graph and determines whether the graph starts at the maximum (if it’s positive) or minimum (if it’s negative). For a sine graph, a positive or negative number vertically flips the graph like it does with a cosine graph.

### How do you graph a sine function?

Because the graph of the sine function is being graphed on the x–y plane, you rewrite this as f(x) = sin x where x is the measure of the angle in radians….

- Find the values for domain and range.
- Calculate the graph’s x-intercepts.
- Calculate the graph’s maximum and minimum points.
- Sketch the graph of the function.

**What is the equation of a sine function?**

To write a sine function you simply need to use the following equation: f(x) = asin(bx + c) + d, where a is the amplitude, b is the period (you can find the period by dividing the absolute value b by 2pi; in your case, I believe the frequency and period are the same), c is the phase shift (or the shift along the x-axis …

#### What is the sine graph?

The graphs of functions defined by y = sin x are called sine waves or sinusoidal waves. Notice that the graph repeats itself as it moves along the x-axis. This graph repeats every 6.28 units or 2 pi radians. It ranges from -1 to 1; half this distance is called the amplitude.

**What is a COS graph?**

To graph the cosine function, we mark the angle along the horizontal x axis, and for each angle, we put the cosine of that angle on the vertical y-axis. The result, as seen above, is a smooth curve that varies from +1 to -1. As you do so, the point on the graph moves to correspond with the angle and its cosine.

## What are sine graphs used for?

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

**What are the three characteristics of a sine wave?**

Sinusoidal Amplitude, Frequency, and Phase All sinusoidal signals have the same general shape, but they are not identical. The three characteristics that separate one sinusoid from another are amplitude, frequency, and phase.

### What are the parameters of a sine wave?

the parameter A — called the amplitude, the parameter p — called the period, the parameter d called the shift, and. the parameter B — called the center.

**What produces a sine wave?**

Sinusoidal Waveforms. An AC generator uses the principal of Faraday’s electromagnetic induction to convert a mechanical energy such as rotation, into electrical energy, a Sinusoidal Waveform. A simple generator consists of a pair of permanent magnets producing a fixed magnetic field between a north and a south pole.

#### What is a cos wave?

A cosine wave is a signal waveform with a shape identical to that of a sine wave , except each point on the cosine wave occurs exactly 1/4 cycle earlier than the corresponding point on the sine wave.

**Does cos or sin come first?**

When sine and cosine are first…” Short answer: Yes. When sine and cosine are first revealed in Trigonometry class they are taught as ratios of the the sides of right triangles.

## What is the difference between sine wave and cos wave?

The Cosine Wave, simply called “cos”, is as important as the sine wave in electrical engineering. The cosine wave has the same shape as its sine wave counterpart that is it is a sinusoidal function, but is shifted by +90o or one full quarter of a period ahead of it.

**How does sin and cos work?**

sin cos and tan are basically just functions that relate an angle with a ratio of two sides in a right triangle. Sin is equal to the side opposite the angle that you are conducting the functions on over the hypotenuse which is the longest side in the triangle. Cos is adjacent over hypotenuse.

### How do you go from sin to cos?

All triangles have 3 angles that add to 180 degrees. Therefore, if one angle is 90 degrees we can figure out Sin Theta = Cos (90 – Theta) and Cos Theta = Sin (90 – Theta).

**Who uses trigonometry in their careers?**

Trigonometry is used by engineers, medical services technicians, mathematicians, data entry specialists, loggers, statisticians, actuaries, drafters, chemists, economists, physicists, registered nurses, building inspectors, boilermakers, machinists and millwrights.

#### How trigonometry is used in physics?

In physics, trigonometry is used to find the components of vectors, model the mechanics of waves (both physical and electromagnetic) and oscillations, sum the strength of fields, and use dot and cross products. Even in projectile motion you have a lot of application of trigonometry.

**How is maths used in construction?**

In the modern world, builders use math every day to do their work. Construction workers add, subtract, divide, multiply, and work with fractions. They measure the area, volume, length, and width.