Răspuns:
Explicație pas cu pas:
2)
a)
(1/2)²+(1/3)²
= 1²/2²-1²/3²
=⁹⁾1/4-⁴⁾1/9
=9/36-4/36
=5/36
-
b)
(1/3)⁰+(1/3)¹
=1⁰/3⁰+1¹/3¹
= ³⁾1/1+1/3
=3/3+1/3
=4/3
c)
(5/3)²-(1/2)³
=5²/3²-1³/2³
=⁸⁾25/9-⁹⁾1/8
=200/72-1/72
=199/72
d)
(1/2)¹-(1/2)²
=1¹/2¹-1²/2²
=²⁾1/2-1/4
=2/4-1/4
= 1/4
