ptrlvn01
23.12.2019 •
Mathematics
Solve on the interval 0 ≤ θ < 2π
cos(2θ-π/2)=-1
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Ответ:
2 t - π/2 = π
2 t = π + π/2
2 t = 3π/2
t = 3π/2 : 2
t = 3π/4 = 135°
Ответ:
thanks
Step-by-step explanation:
thx for the points