<span>2000 + 6% от 2000 * 1 (год) = 2120 </span>
х 2
––––– = –––––
х–3 5
5х = 2(х – 3)
5х =2х – 6
5х – 2х = – 6
3х = – 6
х = – 6 : 3
х = – 2
16(sin³x+cos³x)=16•(sinx+cosx)•(sin²x-sinxcosx+cos²x)=
=16•0.5•(1- sinxcosx)=8•(1- sinxcosx)=(sinx+cosx)²=sin²x+2sinxcosx+cos²x=1+2sinxcosx=0.5² = sinxcosx=
=(0.25-1)/2=-0.375<span>=8•(1+0.375)=11.</span>
(1-4x)(1+4x+16x²)-6x³<10x-70x³
1-64x³-6x³-10x+70x³<0
-10x<-1
x>0,1
99x³-(1+5x)(1-5x+25x²)>12x-26x³
99x³-(1+125x³)-12x+26x³>0
99x³-1-125x³-12x+26x³>0
-12x>1
x<-1/12