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sqell
@sqell
July 2022
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1) 2sinX = - 1
3) tg ([tex] \frac{ \pi }{2} - x)[/tex] = - 1
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nKrynka
1) 2sinX = - 1
sinx = - 1/2
x = (-1)^n*arcsin(-1/2) + πn, n∈z
x = (-1)^(n+1)*arcsin(1/2) + πn, n∈z
x = (-1)^(n+1)*(π/6)+ πn, n∈z
3) tg (
π/2 - x) = - 1
ctgx = - 1
x = - π/4 = πk, k∈Z
2 votes
Thanks 1
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Answers & Comments
sinx = - 1/2
x = (-1)^n*arcsin(-1/2) + πn, n∈z
x = (-1)^(n+1)*arcsin(1/2) + πn, n∈z
x = (-1)^(n+1)*(π/6)+ πn, n∈z
3) tg (π/2 - x) = - 1
ctgx = - 1
x = - π/4 = πk, k∈Z