Question

ex. 1, 3 de la test 4 si ex 1, 3 de la test 5

Answer 1

Răspuns:

1 test 4

a)

6⁴=6X6X6X6=36X36=1.326

5⁴=5X5X5X5=25X25=625

1.326-625=701

b)49-1=48.1 la orice putere ramâne 1.

c)45²=45X45=2.025

2025-2²=2021

d)9-3=6 6²=36

3 transformi

test 5

1)a)30

b)5²⁰X5=5²¹, raspuns 0

c)6²=36

d)8X7=56; rezulta răspunsul e 7²=49

3)u(1³³)=1

u(4³⁴)=4

u(7³⁵)=3

u(a)=1+4+3=8.