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martinezjulio1976
17.05.2021 •
Mathematics
Find the exact value of cot 330° in simplest form with a rational denominator.
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Ответ:
Step-by-step explanation:
The cotangent function can be rewritten by trigonometric relations, that is:
By taking approach the periodicity properties of the cosine and sine function (both functions have a period of 360°), we use the following equivalencies:
By (2) and (3) in (1), we have following expression:
If we know that
and
, then the result of the trigonometric expression is:
Ответ:
get good kid
Step-by-step explanation: