Răspuns :
A={|1<x<^100}
S=(1+2+3+...+2^100-1+2^100)-1
S=[2^100×(2^100+1)]/2-1
S=2^99(2^100+1)-1
S=2^+199+2^99-1
S=(1+2+3+...+2^100-1+2^100)-1
S=[2^100×(2^100+1)]/2-1
S=2^99(2^100+1)-1
S=2^+199+2^99-1
1+2+3+....+2la puterea 100=2 la puterea 100x(2 la puterea 100+1):2=
=(2 la puterea 200+2 la puterea 1oo):2=2 la puterea 199+2 la puterea 99=
=2 la puterea 99x(2 la puterea 100+1).
A M FOLOSIT "Suma lui Gauss".