Răspuns :
a) 7=(-1)*(-7)
b)7=(3/2)*(14/3)
c)[tex]7= \sqrt{7} * \sqrt{7} [/tex]
d)[tex]7=( \frac{ \sqrt{7} }{2} )*(2 \sqrt{7} )[/tex]
b)7=(3/2)*(14/3)
c)[tex]7= \sqrt{7} * \sqrt{7} [/tex]
d)[tex]7=( \frac{ \sqrt{7} }{2} )*(2 \sqrt{7} )[/tex]
a)
1*7=7
(-1)*(-7)=7
b)
2/7*49/2=
=7
c)
√7*√7=7
(-√7)*(-√7)=7
d)
√7/5*5√7=7