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djyliett [7]
3 years ago
6

What is the exact value of sec(-405degress)?? ...?

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
3 0
Sec= 1/(cos), you can add or subtract 360 degrees from any angle measurement without changing the value of any of the trig functions i.e. 405 degrees= 405-360=45. cos of 45 is sqrt(2)/2 so sec405= 2/sqrroot2
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Arc length of the quarter circle is 1.57 units.

Solution:

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1/3 of students at a school are boys. If there are 600 students at the school, how many are girls?
Temka [501]

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Step-by-step explanation:

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