Question

Aflati x astfel incat :
a) 1/7/x = 0,(3)
b) a/b=1/b/x

Answer 1

a)1/7/X=0,(3)
1/7ori  1/X=3/9
1/7X=3/9
21X=9
X=9/21 se simplica cu 3
X=3/7
b)a/b=1/b/x
a/b=1/b ori 1/x
1/bx=a/b
b=abx
x= b/ab
x=a