Составьте уравнение с целым коэффициентом с корнями 4 и 6​

1) log₀₎₂²(x/25) = log₀₎₂(x/25)*log₀₎₂(x/25) =
 = ( log₀₎₂x - log₀₎₂25)*( log₀₎₂x - log₀₎₂25)= (log₀₎₂x  +2)* (log₀₎₂x  +2)=
= (log₀₎₂x  +2)²= log₀₎₂²x +4log₀₎₂x +4
2)log₀₎₂²(x/5) = log₀₎₂(x/5)*log₀₎₂(x/5) = (log₀₎₂x - log₀₎₂5)*(log₀₎₂x - log₀₎₂5)=
=(log₀₎₂x +1)*(log₀₎₂x +1)= (log₀₎₂x +1)² = log₀₎₂²x + 2log₀₎₂x +1
3) Само уравнение:
 log₀₎₂²x +4log₀₎₂x +4 +log₀₎₂²x + 2log₀₎₂x +1 = 1   (ОДЗ: x > 0)
log₀₎₂x = t
t² +4t +4 +t² +2t = 0
2t² +6t +4 = 0
t² +3t +2 = 0
По т. Виета
 а) t = -2, ⇒ log₀₎₂x = -2, x = 0,2⁻² = 25
б) t = -1, ⇒ log₀₎₂x = -1, ⇒ x = 0,2⁻¹ = 5
ответ: 125

430° = 430*\frac{\pi}{180}=\frac{43\pi}{18};

450° =  450*\frac{\pi}{180}=\frac{5\pi}{2};

900° =  900*\frac{\pi}{180}=5\pi;

390° =  390*\frac{\pi}{180}=\frac{13\pi}{6};

33° = 33*\frac{\pi}{180}=\frac{11\pi}{60};

15° = 15*\frac{\pi}{180}=\frac{\pi}{12};

10° = 10*\frac{\pi}{180}=\frac{\pi}{18};

20° = 20*\frac{\pi}{180}=\frac{\pi}{9};

85° = 85*\frac{\pi}{180}=\frac{17\pi}{36};

160° = 160*\frac{\pi}{180}=\frac{8\pi}{9};

200° = 200*\frac{\pi}{180}=\frac{10\pi}{9};

35° = 35*\frac{\pi}{180}=\frac{7\pi}{36};

60° = 60*\frac{\pi}{180}=\frac{\pi}{3};

760° = 760*\frac{\pi}{180}=\frac{38\pi}{9};

45° = 45*\frac{\pi}{180}=\frac{\pi}{4};

350° = 350*\frac{\pi}{180}=\frac{35\pi}{18};

Объяснение: