А) 9m^2-6m+1 при m=-3; 7; 2/3
<span>(3m-1)^2 m=-3 (-3*3-1)^2=10^2=100
m=7 (21-1)^2=20^=400
m=2/3 (2/3*3-1)^2=1^2=1
б) 40с+16+25 при с=0,6; 1,2; -1,2
40c+41
c=0.6 24+41=65
c=1.2 48+41=89
c=-1.2 -48+41=-7</span>
Решение
- 6√3 ctg(- 4π/3) = 6√3*(1/√3) = 6
2a⁻³ * 5a⁵ = 10*а⁽⁵⁻³⁾=<span>10а</span>²
=(4x)²+2*4x*5+5²=(4x)²+40x+5²=(4x+5)².