The principal part of e3−ex3+3 as x→0 is
a. 1−e3
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Jan 30, 2024
The principal part of e3−ex3+3 as x→0 is
a. 1−e3
b. −e3x3
c. −e3x3
d. −e3x
Solution by Steps
step 2
The Taylor series expansion of ex3+3 at x=0 is given by e3−e3x3−2e3x6−6e3x9+O(x11)
step 3
The principal part of the series is the term with the lowest degree of x that is not a constant. In this case, it is −e3x3
C
Key Concept
Principal Part of a Series
Explanation
The principal part of a series is the term with the lowest degree of the variable that is not a constant, which represents the most significant part of the series as the variable approaches zero.