carolinehodges
25.06.2019 •
Mathematics
Need with this one, no clue how to solve this. if someone could explain what's going on like i'm 5 it'd be much appreciated.find x.
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Ответ:
Question 10
cos 45 = x/10
cos 45(10) = x
(1/sqrt{2})*10 = x
10/sqrt{2} = x
Rationalize the denominator.
[10/sqrt{2}] • [sqrt{2}/sqrt{2}] = x
10•sqrt{2} ÷ 2 = x
5• sqrt{2} = x
Ответ: