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sonyakonstantinova
@sonyakonstantinova
July 2022
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решите уравнение cos(п/2+x)-sin(п-x)=1
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nKrynka
Решение
cos(п/2+x)-sin(п-x)=1
- sinx - sinx = 1
-2sinx = 1
sinx = - 1/2
x = (-1)^n arcsin(-1/2) +
πn, n ∈ Z
x = (-1)^(n+1) (π/6) +
πn, n ∈ Z
3 votes
Thanks 3
sonyakonstantinova
спасибо большое!
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Answers & Comments
cos(п/2+x)-sin(п-x)=1
- sinx - sinx = 1
-2sinx = 1
sinx = - 1/2
x = (-1)^n arcsin(-1/2) + πn, n ∈ Z
x = (-1)^(n+1) (π/6) + πn, n ∈ Z