Cosine Meaning in English
word
Definition
In mathematics, cosine is a function that gives the ratio of the length of the side adjacent to an angle to the length of the hypotenuse in a right triangle. It is commonly used in trigonometry and is written as 'cos'.
Usage & Nuances
'Cosine' is a technical mathematical term, almost always found in scientific, academic, or educational contexts. Typically used in phrases like 'cosine of angle θ', or 'cosine function'. Do not confuse with 'co-sign,' which is unrelated.
Example Sentences
The cosine of 0 degrees is 1.
basic
In trigonometry, we often calculate the cosine of an angle.
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You can use a calculator to find the cosine value.
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What's the cosine of 60 degrees again? Oh, it's 0.5.
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If you graph the cosine function, you'll see it forms a smooth wave.
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Remember to use degrees or radians when entering the cosine on your calculator.
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