Explicație pas cu pas:
Bună!
ex 11
a) 3,1⁵•3,1⁴= (3,1)⁵±⁴= 3,1⁹
b) 11,3⁶•11,3²=(11,3)⁶±²= 11,3⁸
c) 4,93⁸•4,93¹²=(4,93)⁸±¹²=4,93²⁰
d) 0,8⁵•0,8⁵•0,8³=(0,8)⁵±⁵±³= 0,8¹³
e) 3,2¹⁴•3,2⁶=(3,2)¹⁴±⁶=3,2²⁰
f) 20,9⁹•20,9⁵•20,9=20,9⁹•20,9⁵•20,9¹=(20,9)⁹±⁵±¹=20,9¹⁵
ex 13
a) (1,5³)²= (1,5)³°²=1,5⁶
b) (2,9⁶)³=(2,9)⁶°³= 2,9¹⁸
c) (8,5⁶)⁰=(8,5)⁶°⁰=8,5⁰
d) [(5,4³)⁰]¹¹=(5,4)³°⁰°¹¹=5,4⁰°¹¹=5,4⁰
e) [(3,6)⁶]¹⁰=(3,6)⁶°¹⁰=3,6⁶⁰
f) [(9,6³)²]²¹=(9,6)³°²°²¹=9,6⁶°²¹=9,6¹²⁶
g) [(5,8⁵)⁴]³=(5,8)⁵°⁴°³=5,8²⁰°³=5,8⁶⁰
h) [(3,1⁷)²]⁵= (3,1)⁷°²°⁵=3,1¹⁴°⁵=3,1⁷⁰
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±= adunare
°=înmulțire
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