-2sint-sint=-3
-3sint=-3
sint=1
t=π/2+2πn,n∈Z
1) 8у+(3х+5у)=8у+3х+5у=3х+13у
2) (4а+2)+(-а-1)=<span>4a+2-a-1=3a+1</span>
3) 0,4b+(1,2b-0,1)=<span>0.4b+1.2b-0.1=1.6b-0.1</span>
4) (15х+2у)+(4х-3у)=<span>5x+2y+4x-3y=19x-y</span>
5) (4р в квадрате q-3pq в квадрате)+(-p в квадрате q + pq в квадрате)=4p2q-3pq2-p2q+pq2=3p2q-2pq2
F(x)=3x²-7x+4
3x²-7x+4=y0=0
D=(-7)²-4*3*4=49-48=1=√1=1
x1=(-(-7)+1)/4*3=8/12=2/3
x1=2/3
x2=(-(-7)-1)/4*3=6/12
x2=1/2
x0=0
y0=3*(x0)²-7*x0+4=0-0+4
x0=0 y0=4
y0=0 x1=2/3 x2=1/2
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