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OpenStudy (anonymous):
Use a calculator to find the given value. Round to four decimal places. cos 21degrees
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OpenStudy (mertsj):
Do you have a calculator?
OpenStudy (anonymous):
yes
OpenStudy (mertsj):
Then use it to find the cos of 21 degrees.
OpenStudy (anonymous):
well i dont see how to do it these are the answers (A. 1.0711) (B. 0.9336) (C. 0.3839) (D. 0.3584)
OpenStudy (anonymous):
opps thats the wrong question
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OpenStudy (mertsj):
The answer is .9336
OpenStudy (mertsj):
for some calculators, you have to type 21 and then cos. For others your type cos 21. And make sure your calculator is set in the degree mode and not radian mode.
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