Expression 7: Start sum from "n" equals 0 to "N" , end sum, StartFraction, left parenthesis, negative 1 , right parenthesis Superscript, "n" , Baseline "x" Superscript, left parenthesis, 2 "n" , right parenthesis , Baseline Over left parenthesis, 2 "n" , right parenthesis ! , EndFractionN∑n=0−1nx2n2n!
7
Expression 8: StartFraction, 1 Over 1 minus "x" , EndFraction11−x
8
Expression 9: Start sum from "n" equals 0 to "N" , end sum, "x" Superscript, "n" , BaselineN∑n=0xn
9
Expression 10: natural log left parenthesis, 1 plus "x" , right parenthesisln1+x
10
Expression 11: Start sum from "n" equals 1 to "N" , end sum, StartFraction, left parenthesis, negative 1 , right parenthesis Superscript, left parenthesis, "n" minus 1 , right parenthesis , Baseline "x" Superscript, "n" , Baseline Over "n" , EndFractionN∑n=1−1n−1xnn
11
Expression 12: arc tangent left parenthesis, "x" , right parenthesisarctanx
12
Expression 13: Start sum from "n" equals 0 to "N" , end sum, StartFraction, left parenthesis, negative 1 , right parenthesis Superscript, "n" , Baseline "x" Superscript, left parenthesis, 2 "n" plus 1 , right parenthesis , Baseline Over 2 "n" plus 1 , EndFractionN∑n=0−1nx2n+12n+1