Expression 6: 1 third left parenthesis, sin left parenthesis, "N" left parenthesis, "S" , right parenthesis "t" , right parenthesis , cos left parenthesis, "K" left parenthesis, "S" , right parenthesis "t" , right parenthesis , right parenthesis plus left parenthesis, "N" left parenthesis, "S" , right parenthesis , "K" left parenthesis, "S" , right parenthesis , right parenthesis13sinNSt,cosKSt+NS,KS
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 2 pi2π
6
Expression 7: 1 third left parenthesis, sin left parenthesis, "N" left parenthesis, "S" , right parenthesis "t" , right parenthesis , sin left parenthesis, "K" left parenthesis, "S" , right parenthesis "t" , right parenthesis , right parenthesis plus left parenthesis, "N" left parenthesis, "S" , right parenthesis , "K" left parenthesis, "S" , right parenthesis , right parenthesis13sinNSt,sinKSt+NS,KS
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 2 pi2π
7
Expression 8: 1 third left parenthesis, StartFraction, 1 Over "N" left parenthesis, "S" , right parenthesis , EndFraction Start sum from "n" equals 1 to "N" left parenthesis, "S" , right parenthesis , end sum, sin left parenthesis, "n" "t" , right parenthesis , StartFraction, 1 Over "K" left parenthesis, "S" , right parenthesis , EndFraction Start sum from "n" equals 1 to "K" left parenthesis, "S" , right parenthesis , end sum, cos left parenthesis, "n" "t" , right parenthesis , right parenthesis plus left parenthesis, "N" left parenthesis, "S" , right parenthesis , "K" left parenthesis, "S" , right parenthesis , right parenthesis131NSNS∑n=1sinnt,1KSKS∑n=1cosnt+NS,KS
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 2 pi2π
8
Expression 9: 1 half left parenthesis, Start sum from "n" equals 1 to "N" left parenthesis, "S" , right parenthesis , end sum, sin left parenthesis, 2 Superscript, "n" , Baseline "t" , right parenthesis 2 Superscript, negative "n" , Baseline , Start sum from "n" equals 1 to "K" left parenthesis, "S" , right parenthesis , end sum, cos left parenthesis, 2 Superscript, "n" , Baseline "t" , right parenthesis 2 Superscript, negative "n" , Baseline , right parenthesis plus left parenthesis, "N" left parenthesis, "S" , right parenthesis , "K" left parenthesis, "S" , right parenthesis , right parenthesis12NS∑n=1sin2nt2−n,KS∑n=1cos2nt2−n+NS,KS
domain t Minimum: 00
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 2 pi2π
9
Expression 10: 1 fifth left parenthesis, Start sum from "n" equals 1 to "N" left parenthesis, "S" , right parenthesis , end sum, StartFraction, sin left parenthesis, "n" "t" , right parenthesis Over "n" , EndFraction , Start sum from "n" equals 1 to "K" left parenthesis, "S" , right parenthesis , end sum, StartFraction, cos left parenthesis, "n" "t" , right parenthesis Over "n" , EndFraction , right parenthesis plus left parenthesis, "N" left parenthesis, "S" , right parenthesis , "K" left parenthesis, "S" , right parenthesis , right parenthesis15NS∑n=1sinntn,KS∑n=1cosntn+NS,KS
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 2 pi2π
10
Expression 11: 1 fifth left parenthesis, Start sum from "n" equals 1 to "N" left parenthesis, "S" , right parenthesis , end sum, StartFraction, sin left parenthesis, "n" squared "t" , right parenthesis Over "n" squared , EndFraction , Start sum from "n" equals 1 to "K" left parenthesis, "S" , right parenthesis , end sum, StartFraction, cos left parenthesis, "n" squared "t" , right parenthesis Over "n" squared , EndFraction , right parenthesis plus left parenthesis, "N" left parenthesis, "S" , right parenthesis , "K" left parenthesis, "S" , right parenthesis , right parenthesis15NS∑n=1sinn2tn2,KS∑n=1cosn2tn2+NS,KS
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 2 pi2π
11
Expression 12: 1 sixth left parenthesis, Start sum from "n" equals 1 to "N" left parenthesis, "S" , right parenthesis , end sum, StartFraction, sin left parenthesis, "n" squared "t" , right parenthesis Over "n" , EndFraction , Start sum from "n" equals 1 to "K" left parenthesis, "S" , right parenthesis , end sum, StartFraction, cos left parenthesis, "n" squared "t" , right parenthesis Over "n" , EndFraction , right parenthesis plus left parenthesis, "N" left parenthesis, "S" , right parenthesis , "K" left parenthesis, "S" , right parenthesis , right parenthesis16NS∑n=1sinn2tn,KS∑n=1cosn2tn+NS,KS
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤