Question

5 Calculează:
a) 5.32-210:25;
b) 2.22.23+317 315 -1;
c) 321-3-(32.33)4 +70;
d) [(31)-(32)1113: (24.333)2.

Answer 1

5 Calculează:

a) 5×3²-2¹⁰:2⁵=5×9-2⁵=45-32=13

b)2×2²×2³+3¹⁷:3¹⁵-1=2⁶+3²-1=64+9-1=72

c) 3²¹-3×(3²×3³)⁴+7⁰=3²¹-3×(3⁵)⁴+1=3²¹-3²¹+1=1

d) [(3⁴)⁶-(3²)¹¹]³:(2⁴×3³³)²=(3²⁴-3²²)³:(2⁴×3³³)²=

(3²²)³(3²-1)³:2⁸×3⁶⁶=3⁶⁶(9-1)³:(2⁸×3⁶⁶)=

8³:2⁸=(2³)³:2⁸=2⁹:2⁸=2

Answer 2

Răspuns:

Explicație pas cu pas: