Сложения и вычитание многочленов

6у⁷-(4у⁴+2у³-2у²-3)*4у⁵=6у⁷-(16у⁹+8у⁸-8у⁷-12у⁵)=6у⁷-16у⁹-2у⁸+8у⁷+12у⁵=6у⁷+8у⁷-16у⁹-8у⁸+12у⁵

= -16у⁹-8у⁸14у⁷+12у⁵

f'(pi/6) если f(x)=15x^2-пx/2+5cosx

f '(x)=30x-pi/2-5*sin(x)

f ‘(pi/6)=30*pi/6-pi/2-5*sin(pi/6)=5*pi-pi/2-5*1/2=5,5*pi-0,5

b1+b2=-10

b2+b3=-5

b1+b1q=-10

b1q+b1q^2=-5

b1(1+q)=-10

b1q(1+q)=-5

b1=-10/(1+q)

-10q(1+q)/(1+q)=-5

b1=-10/(1+q)

-10q=-5

b1=-10/(1+q)

q=1/2

b1=-10(1+1/2)

q=1/2

b1=-20/3

q=1/2

b2=b1q=-20/3*1/2=-10/3

b3=b2q=-10/3*1/2=-5/3

-20/3; -10/3; -5/3