A=12 B=12 C=7 D=7
Extracted text: A building (or machine) is shaken by a periodic force f(t) defined bye -C, -<><- --="" f(t)="3C,">< -="" 20="" 20="" -c;="" 20="">< (a)="" (1)="" insert="" your="" parameter="" value="" c="" for="" your="" force="" f(t).="" (ii)="" state="" the="" period="" of="" f(t).="" 2n="" (iii)="" sketch="" f(t)="" over="" the="" domain=""><>< (iv)="" state="" with="" reason(s)="" whether="" the="" function="" is="" odd,="" even,="" or="" neither.="" (v)="" determine="" the="" first="" four="" non-zero="" coefficients="" in="" the="" fourier="" series="" for="" f(t).="" (b)="" write="" down="" the="" first="" four="" non-zero="" coefficients="" in="" the="" fourier="" series="" for="" g(t)="f(t)" –="">