1) (5b+1)^3=125b^3+75b^2+15b+1
2) (2t+3)^3=8t^3+36t^2+54t+9
1)<span>1- sin2x=cosx-sinx
(сosx-sinx)²-(cosx-sinx)=0
(cosx-sinx)(cosx-sinx-1)=0
cosx-sinx=0/cosx≠0
1-tgx=0⇒tgx=1⇒x=π/4+πn
cosx-sinx-1=0
cos²x/2-sin²x/2-2sinx/2cosx/2-sin²x/2-cos²x/2=0
-2sin²x/2-2sinx/2cosx/2=0
-2sinx/2(sinx/2+cosx/2)=0
sinx/2=0⇒x/2=πn⇒x=2πn
sinx/2+cisx/2=0/cosx/2≠0
tgx/2=-1⇒x/2=-π/4+πn⇒x=-π/2+2πn
2)2(cos x- sin x)²- 5 (sin x - sin x)+2=0
2(cosx-sinx)²=-2
(cosx-sinx)²=-1
нет решения
</span>
F'(x) = (cos4)'-(e^3)' = -sin4-e^3
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Вот здесь график и таблица
1) ...=3х-1+2х+6=х+7=42; х=42-7=35
2) ...=7х+3-5х-2=2х+1=42; 2х=42-1=41; х=41:2=20,5
3) ...=4-3х+2+х=6-2х=42; 2х=6-42= -36; х= -36:2= -18
4) ...=5х-6-2х-3=3х-9=42; 3х=42+9=51; х=51:3=17