Expression 1: "y" equals 49.6sine left parenthesis, "x" plus StartFraction, pi Over 180 , EndFraction times 302 , right parenthesis plus 17.4sine left parenthesis, 2 "x" plus StartFraction, pi Over 180 , EndFraction times 298 , right parenthesis plus 13.8sine left parenthesis, 3 "x" plus StartFraction, pi Over 180 , EndFraction times 195 , right parenthesis plus 7.1sine left parenthesis, 4 "x" plus StartFraction, pi Over 180 , EndFraction times 215 , right parenthesis plus 4.5sine left parenthesis, 5 "x" plus StartFraction, pi Over 180 , EndFraction times 80 , right parenthesis plus 0.6sine left parenthesis, 6 "x" plus StartFraction, pi Over 180 , EndFraction times 171 , right parenthesis plus 2.7sine left parenthesis, 7 "x" plus StartFraction, pi Over 180 , EndFraction times 34 , right parenthesis plus 0.6sine left parenthesis, 8 "x" plus StartFraction, pi Over 180 , EndFraction times 242 , right parenthesis plus 1.6sine left parenthesis, 9 "x" plus StartFraction, pi Over 180 , EndFraction times 331 , right parenthesis plus 1.3sine left parenthesis, 10 "x" plus StartFraction, pi Over 180 , EndFraction times 208 , right parenthesis plus 0.3sine left parenthesis, 11 "x" plus StartFraction, pi Over 180 , EndFraction times 89 , right parenthesis plus 0.5sine left parenthesis, 12 "x" plus StartFraction, pi Over 180 , EndFraction times 229 , right parenthesis plus 0.7sine left parenthesis, 13 "x" plus StartFraction, pi Over 180 , EndFraction times 103 , right parenthesis plus 0.3sine left parenthesis, 14 "x" plus StartFraction, pi Over 180 , EndFraction times 305 , right parenthesis plus 0.4sine left parenthesis, 15 "x" plus StartFraction, pi Over 180 , EndFraction times 169 , right parenthesis plus 0.5sine left parenthesis, 16 "x" plus StartFraction, pi Over 180 , EndFraction times 230 , right parenthesis plus 0.5sine left parenthesis, 17 "x" plus StartFraction, pi Over 180 , EndFraction times 207 , right parenthesis plus 0.4sine left parenthesis, 18 "x" plus StartFraction, pi Over 180 , EndFraction times 64 , right parenthesisy=49.6sinx+π180·302+17.4sin2x+π180·298+13.8sin3x+π180·195+7.1sin4x+π180·215+4.5sin5x+π180·80+0.6sin6x+π180·171+2.7sin7x+π180·34+0.6sin8x+π180·242+1.6sin9x+π180·331+1.3sin10x+π180·208+0.3sin11x+π180·89+0.5sin12x+π180·229+0.7sin13x+π180·103+0.3sin14x+π180·305+0.4sin15x+π180·169+0.5sin16x+π180·230+0.5sin17x+π180·207+0.4sin18x+π180·64