<span> 3x+y+2z, при x= -1,1, y= 0,1, z= 1,1
</span>
3*(<span><span>-1,1) </span>+ </span><span><span>0,1 </span>+ 2</span>*<span>1,1 = -3,3 + 0,1 + 2,2 = </span>(<span> -3,3+</span><span>2,2) </span><span>+ 0,1 = -1,1 </span><span>+ 0,1 = -1</span>
Sin²a+tg²a*ctg²²a+cos²a=1+1=2
0.7=
0.(15)=0+15*
=
1.2(5)=1.2(5)*10=12+0.(5)=12+5*
=12+
=
Номер 1
2.а(25а²-b²)
a(5a-b)(5a+b)
3. D=b²-4ac=144-144=0
12+0 12
x=-------- =------= -2
-3*2 -6