Răspuns:
Explicație pas cu pas:
(2-1/2)·(3-1/3)·(4-1/4)·1/5 = 3 ?
Calculam fiecare paranteza separat :
(²⁾2-1/2) (4-1)/2 = 3/2
(³⁾3-1/3) = (9-1)/3 = 8/3
(⁴⁾4-1/4) = (16-1)/4 = 15/4 =>
(2-1/2)·(3-1/3)·(4-1/4)·1/5 = 3/2 · 8/3 · 15/4 · 1/5 =
= (3·8)/(2·3) · (15·1)/(4·5) = 8/2 · 3/4 =
= (8·3)/(2·4) = 8·3/8 = 3 = >
(2-1/2)·(3-1/3)·(4-1/4)·1/5 = 3
(2-1/2)(3-1/3)(4-1/4)×1/5=
=(4/2-1/2)(9/3-1/3)(16/4-1/4)×1/5=
=3/2×8/3×15/4×1/5=
=4×15/4×1/5=
=15×1/5=3
