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2+2la puterea -1 +2la puterea -2

Răspuns :

2+2 la puterea -1+ 2 la puterea -2=
=4 la puterea -1+ 4=
=-4+4=
=0

Coronita ^^

2 la putearea minus 1=(1/2)¹=1/2

2 la puterea minus 2=(1/2)²=1²/2²=1/4

2+1/2+1/4

(adducem la acelasi numitor)

2x4/4+1x2/4+1/4=8/4+2/4+1/4=11/4