1) Вторая степень
2) Первая степень
3) Третья степень.
2 SIN X = КОРЕНЬ ИЗ 3
SIN X = КОРЕНЬ ИЗ 3/2
X=ПИ/3 +2ПИk
X=2ПИ/3+ 2ПИk
5(с+4b)/(c-4b)(c+4b)=5/(c-4b)
5/(14-1)=5/13
F(-15) = 3*(-15) - 0.2*(-15)² = -45 -0.2*225 = -45 -45 = -90
f(0.2) = 3*0.2 - 0.2*(0.2)² = 0.6 - 0.008 = 0.592
f(2/3) = 3*(2/3) - 0.2 * (2/3)² = 2 - 0.2 * (4/9) = 2 - (1/5) * (4/9)=
= 2 - (4/45) = 90/45 - 4/45 = 86/45 = 1 ⁴¹/₄₅