114
punti
Livello 1
730) (k*sin(x)*cos(x) = 2) & (0 <= x <= π/4) & (k != 0) ≡
≡ (k*(1/2)*sin(2*x) = 2) & (0 <= x <= π/4) ≡
≡ (sin(2*x) = 4/k) & (0 <= x <= π/4) ≡
≡ (x = arcsin(4/k)/2) & (0 <= x <= π/4) ≡
≡ (x = arcsin(4/k)/2) & (k >= 4)
57798
punti
Genius I