Graphics Reference
In-Depth Information
44 The Maclaurin series is 0
....
The remainder always equals the whole value of the function, so
remainders are constant and not null.
For each choice of the constant k , thefunction x
0
0
sin x
k · f ( x ) has the
same Maclaurin series as sin x .
45 As in qn 35, F ( a ) F ( b ) 0, and F continuous on [ a , b ] and differentiable
on ( a , b ),
( b c )
( n 1)! f ( c ) K 0.
F ( c ) 0
46 Using the work of qn 41, Cauchy's form of the remainder
( x
x )
x
( n
1!)
R
( x )
(
1)
( n
1)!
(1
x )
1
·
1
(
1)
x
x .
1
x
1
Now
1
x x
0
1
1
x
(1
)/(1
x )
1.
So
1
x R
( x )
x
/(1
x )
x
/(1
x
)
. But, if
x
1, this
last expression gives a null sequence, so ( R
( x )) is a null sequence.
Search WWH ::




Custom Search