Question

aflati rezultatul calcului: 1-(7/9)¹⁷:[7/9x(7/9)⁴]³​

Answer 1

Răspuns:

Explicație pas cu pas:

1-((7/9)^17:(7/9*(7/9)^4)^3=1-(7/9)^17:(7/9)^15=1-(7/9)^17*(7/9)^-15

1-(7/9)^2

=1-(49/81)=32/81

am folosit a^m*a^n=a^(m+n)

( a^m)^n=a^(m*n)

(a/b)^m= (b/a)^(-m )