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x=8•(1+2+3+...+49)+1225

Repede va rog,dau coroana.


X8123491225Repede Va Rogdau Coroana class=

Răspuns :

x=8×(1+2+3+...+49)+1225=
=8×49×50/2+1225=
=4×49×50+1225=
=4×49×50+1225=
=9800+1225=
=11025

√x=√11025=105