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Maluto4ka
@Maluto4ka
July 2022
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(4√2)cos^2(15pi/8)-2√2
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gadesan2
(4√2)cos^2(15pi/8)-2√2
(4√2)•(1+cos(15pi/4))/2-2√2
(4√2)•(1+√2/2)/2-2√2
2√2•(1+√2/2)-2√2
2√2•(1+2√/2-1)
2√2•2√2
√2•√2=2
Ответ:2
7 votes
Thanks 8
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Answers & Comments
(4√2)•(1+cos(15pi/4))/2-2√2
(4√2)•(1+√2/2)/2-2√2
2√2•(1+√2/2)-2√2
2√2•(1+2√/2-1)
2√2•2√2
√2•√2=2
Ответ:2