= f(u) u = u(x), - , = f(u) u = u(x) , . u . , . , , = f(u) u = u(v), v=v(x), , f(u), u(v) v(x) - .
1. 8.
2. , 9. ,
3. 10.
4. 11.
5.
6. 12.
7. 13.
. :
1. = 4 23 + 3 + 1
. , : (4 23 + 3 + 1)' = = .
2.
. , = .
3.
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4.
. : = f(u), u = u(x), u = 2 + 2..
. , , , .
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(1)
. , 2 . :
(2)
(1) = 0,
> -5, . (2), .
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f(x). : . n ( n- ) (n 1), . , : .
. n = cos x.
. , :
= cos x = os(x+0 )
x = cos(x+1 )
x = cos(x+2 )
x = cos(x+3 )
.
cos(x+n ), n=
,
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, . 0, .
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1.
2. =
3.
4.
5.
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6. , ,
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