Question

Scrie ca putere: 2⁵³÷⁴⁰,7¹¹÷7,9¹÷9³,2⁸³÷8²³,2⁷⁰÷8²³,3⁶⁰÷81¹⁵,(2⁷)¹⁰,(5³)⁴,2²⁰×5²⁰,12³⁰÷6³⁰.​

Answer 1

Răspuns:

a)  2⁵³:2⁴⁰=2⁵³⁻⁴⁰=2¹³

b) 7¹ :7 =7¹¹⁻¹=7¹⁰

c)  9¹²:9³=9¹²⁻³=9⁹

d)  2⁸³:2⁷⁰=2⁸³⁻⁷⁰=2¹³

e)  2⁷⁰:8²³=2⁷⁰:(2³)²³=2⁷⁰:2³ˣ²³= 2⁷⁰⁻⁶⁹= 2¹

f) 3⁶⁰:81¹⁵=3⁶⁰:(3⁴)¹⁵=3⁶⁰:3⁴ˣ¹⁵= 3⁶⁰⁻⁶⁰=3⁰=1

g) (2⁷)¹⁰=2⁷ˣ¹⁰=2⁷⁰

h) (5³)⁴ =5³ˣ⁴=5¹²

i)  2²⁰×5²⁰ = (2×5)²⁰=10²⁰

j)  12³⁰:6³⁰ = (2×6)³ :6³⁰= 2³⁰×6³⁰⁻³⁰=2³⁰×1= 2³⁰