alma79
13.10.2019 •
Mathematics
Find all solutions to 5cosθ = 3cosθ - 1.
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Ответ:
5cosθ = 3cosθ - 1.
5cosθ - 3cosθ = 1.
2cosθ =1
cosθ =1/2
all solutions :
cosθ =cosπ/3
all solutions :
θ =π/3 +2kπ or θ = - π/3 +2kπ k in Z
Ответ:
Just for piints
Step-by-step explanation: