## Answers

- By binomial theorem (x+y)" = (3) x + (*) x4\y'+...+ (%) 7900 @ Put X=1, 7=1 =(1+) = () +(?) + - +() © Rut X=1,42-1 in *(1+(-3) = (2) + (4) E)+ (2) IPA (2) En o=ę cyk (12)

- alternate teams cancel each other Adding @ and ® ***032 (19)+ BC* (P) ogn=25C%)+ (%)+ (%)+-) (cancer each) gray = 10)+(2+(90)fo - Subtract Ô from @ Agho = '{ (9) - ¿ com R) gº= 8 [ (4+ (34C°, ) (1920) Signal = (0)+ (3)+ 3) +- kao etc. cancel each other Hence proved

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