17-2х<span>>0
-2x</span><span>>-17
X</span><span><17/2
</span><span>5x+15<0
5x </span><span>< 15
x</span><15/5
х<span><</span> 3
Sin4x*cos2x=cos4x*sin2x
sin4x*cos2x-cos4x*sin2x=0
sin(4x-2x)=0
sin2x=0
2x=πn, n∈Z
x=πn/2, n∈Z
4(x² - 2x + 4) - 0,5x(6x - 16) = 4x² - 8x + 16 - 3x² + 8x = x² + 16
1) х²-х+0.25
2) b²+(2/3)b+1/9
3) a² - 0.4a + 0.04
4) (a²/4) +(ab/3)+b²/9
5) (x²/16)+(xy/6)+y²/9
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