Rozwiąż równanie sin(x-3)=0 w przedziale[0.2\pi]
sin ( x -3) = 0 w <0; 2π >
sin (x -3) = ) <=> x-3 = 0 lub x -3 = π lub x -3 = 2 π < =>
< =>x = 3 lub lub x = π + 3 lub x= 2π + 3 , ale 2π + 3 ∉ < 0 ; 2π >
mamy więc
x1 = 3 oraz x2 = π + 3
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sin ( x -3) = 0 w <0; 2π >
sin (x -3) = ) <=> x-3 = 0 lub x -3 = π lub x -3 = 2 π < =>
< =>x = 3 lub lub x = π + 3 lub x= 2π + 3 , ale 2π + 3 ∉ < 0 ; 2π >
mamy więc
x1 = 3 oraz x2 = π + 3
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