Răspuns:
1) --> d)
2) --> c)
3) --> a)
Explicație pas cu pas:
1) [1,2²·10-0,25)+1 1/2-(2/3)³·9/16]·60 =
= [(144/100 ·10 - 25/100) + 3/2 - 8/27 ·9/16] ·60 =
= [(1440-25)/100 + ³⁾3/2 - 1/6]·60 =
= (⁶⁾1415/100 + ¹⁰⁰⁾8/6)·60 =
= (8490+800)/600 ·60 =
= 9290/10 = 929
============================
2) [(1 1/2)⁴:13,5-0,3]·13,(3)+0,7 =
= [(3/2)⁴:(135/10)-3/10]·(133-13)/9 +7/10 =
= (81/16 : 27/2 -3/10)·(120/9) + 7/10 =
= (81/16 ·2/27 -3/10) ·(40/3)+7/10 =
= (⁵⁾3/8 -⁴⁾3/10) ·40/3 +7/10 =
= (15-12)/40 ·40/3 +7/10 =
= 1 + 7/10 = 17/10 = 1,7
=============================
3) (73,2:10 -4,32)³·[(0,3)]³ =
= (7,32 -4,32)³·(3/9)³ =
= 3³·(1/3)³ = 3³/3³ = 1
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1) --> d)
2) --> c)
3) --> a)
