x=A*cos(ω*t)
ω=2*π/T
t=3*T/4 по условию
x=10*cos(2*π*3*T/(T*4))=10*cos(1.5*π)=0
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x=A*cos(ω*t)
ω=2*π/T
t=3*T/4 по условию
x=10*cos(2*π*3*T/(T*4))=10*cos(1.5*π)=0
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