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niharikam242
22.05.2021 •
Mathematics
Sec 330 find the exact value in simplest form with a rational denominator
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Ответ:
Step-by-step explanation:
Given :-
And we need to find out its value . Firstly we know that 330° lies in 4th quadrant . And In fourth quadrant , cosine and secant are positive . Therefore , the result will be positive. Now we know that ,
Using this ,
And the value of sec 30° is ,
And by question we need to write it with a rational denominator .So on rationalising the denominator , we have ,
Hence the required answer is 2√3/3.
Ответ: