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7. Introduceti factorii sub radical:
a) 3 radical 2=;
b) 3 radical 5=;
c) 4 radical 3=;
d) 5 radical 2=;
e) 4 radical 5=;
f) -2radical 3=;
g) -9 radical 2=;
h) -3 radical 13=;
i) -11 rasdical 7=;​

Răspuns :

Alexstrugariuid

Răspuns:

3rad(2)=rad(3²•2)=rad(18)

3rad(5)=rad(3²•5)=rad(45)

4rad(3)=rad(4²•3)=rad(48)

5rad(2)=rad(5²•2)rad(50)

4rad(5)=rad(4²•5)=rad(16•5)=rad(80)

-2 rad(3)= - rad(2²•3)=- rad(12)

-9 rad(2)=- rad(81•2)=- rad(162)

-3rad(13)= - rad (3²•13)= -rad(117)

-11 rad (7)=- rad(121•7)=- rad (847)

Explicație pas cu pas:

x•rad(y)=rad(x²•y)

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