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viktoriamakarova11
@viktoriamakarova11
April 2021
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Помогите cos46°-cos74°
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gamingarea
cos46°-cos74° = 0.419
2 votes
Thanks 0
mikael2
Используем формулу сosa-cosb=-2sin(a+b/2)sin)(a-b/2)
a=46 b=74
cos46°-cos74°=-2sin60sin14=-sin14/2
5 votes
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a=46 b=74 cos46°-cos74°=-2sin60sin14=-sin14/2