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More Lessons for Trigonometry, Math Worksheets

What are the Trigonometric Functions?

The three common trigonometry functions are sine, cosine and tangent.### Sine Function

### Cosine Function

### Tangent Function

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

More Lessons for Trigonometry, Math Worksheets

What are the Trigonometric Functions?

The three common trigonometry functions are sine, cosine and tangent.

You may use want to use some mnemonics to help you remember the trigonometric functions. One common mnemonic is to remember the SOH-CAH-TOA.

The **sine **of an angle is the ratio of the opposite side to the hypotenuse side.

Sine is usually abbreviated as sin. Sine * θ * can be written as sin * θ* .

* Example: *

Calculate the value of sin * θ* in the following triangle.

* Solution: *

The **cosine **of an angle is the ratio of the adjacent side and hypotenuse side.

Cosine is usually abbreviated as cos. Cosine * θ* can be written as cos * θ* .

* Example: *

Calculate the value of cos * θ* in the following triangle.

* Solution: *

The **tangent** of an angle is the ratio of the opposite side and adjacent side.

Tangent is usually abbreviated as tan. Tangent *θ * can be written as tan * θ* .

* Example: *

Calculate the value of tan * θ* in the following triangle.

* Solution: *

The following video gives a good review of the sine, cosine and tangent functions:

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You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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