Question

va roog ex 5 si 1 este pentru mainee
dau coroana​

Answer 1

5. a=(1,27)^3×(1,27)^8=(1,27)^11

b=(1,27)^13:(1,27)^5=(1,27)^8

c=[(1,27)^4]^8=(1,27)^32

1.

a)2,4×52,3+2,4×47,7

=2,4×(52,3+47,7)

2,4×100=240

b)17,05^2-17,05×7,05

290,7025-120,2025

=170,5

c)2,7^2-2,7+1,7^2=

=7,29-2,7+2,89

=4,59+2,89

=7,48

d)1,4^2+2,744:1,4

=1,96+1,96

=3.92