Question

Exercitiul 3 va rog frumos, macar unele din ele...

Answer 1

a) -√3 • (-√4/3)

√3 • 4/3

√4

= 2.

b) √7/15 • √21/5

√7/15 • 21/5

√7/5 • 7/5

√(7/5)^2

= 7/5.

c) √9/7 • √4/7

√9/7 • 4/7

√36/49

= 6/7.

d) √196

= 14.

e) √121 / 100 • 10

11/10 • 10

= 11.

f) √1,44

√36 / 25

= 6/5.

g) √25

= 5.

h) 0√3

= 0.

i) - √5346

= - 9√66.

j) √3 • √1/3

√3 • 1/3

√1

= 1.

k) - √676

= -26.

l) - √6 • (- √26/6)

√6 • 25/6

√25

= 5.