September 2021 0 14 Report
Помогите пожалуйста!Даю 15 баллов!Решите на листе! 1)Дано:Аn
a3=4,a7=0
Найти:а1 и S5

2)Вычислите:
2sin a+ sin2 a | 2sin a +sin2 a
если cos a =1|5
0
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