Question

Va rog frumos am nevoie urgent dau coroana mulțumesc anticipat ​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

(√2 + √3)/√6 = √6(√2 + √3)/6 = (√12 + √18)/6 = (2√3 + 3√2)/6

b)

(√5 - √2)/√10 = √10(√5 - √2)/10 = (√50 - √20)/10 = (5√2 - 2√5)/10

c)

(√7 - √2)/√14 = √14(√7 - √2)/14 = (√98 - √28)/14 = (7√2 - 2√7)/14

d)

(3√5 - 2√3)/√15 = √15(3√5 - 2√3)/15 = (3√75 - 2√45)/15 = (15√3 - 6√5)/15

= (5√3 - 2√5)/5

e)

(4√7 + 2√3)/√21 = √21(4√7 + 2√3)/21 = (4√147 + 2√63)/21

= (28√3 + 6√7)/21

f)

(5√5 - 7√2)/√10 = √10(5√5 - 7√2)/10 = (5√50 - 7√20)/10 = (25√2 - 14√5)/10