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laska06464
@laska06464
July 2022
2
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Вычислите sin π/8,,,,,,,,,,,
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alex080297
Arcsin(pi/8)=0.383..........
1 votes
Thanks 1
anastasiavaler
Sin^2 x/2=(1-cos x)/2
sin^2 п/8= (1-cos а/4)/2
cos п/4=корень (2)/2
sin п/8=корень ((2-корень(2))/4=1/2*корень(2-корень(2))
0 votes
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Answers & Comments
sin^2 п/8= (1-cos а/4)/2
cos п/4=корень (2)/2
sin п/8=корень ((2-корень(2))/4=1/2*корень(2-корень(2))