Buna!
Ex 1
√2 - 1 / √2 + √3-√2/√6 + √4-√3/√12 =
( √2 - 1 )√2 / 2 + (√3-√2)√6 / 6 + 2-√3/2√3 =
2-√2/2 + √18 - √12 / 6 + ( 2-√3)√3/6 =
2-√2/2 + 3√2 - 2√3/6 + 2√3 - 3/6 =
0,5
Ex 2
3/√5 + √2 + 3/√8 + √5 =
3√5/5 + √2 + 3/2√2 + √5 =
3√5 /5+ (√2+3)√2 / 4 + √5 =
3√5/5 + 2+3√2/4 + √5 =
3√5+5√5/5 + 2+3√2/4 =
8√5/5 + 2+3√2 / 4
/ - linie de fractie
Bafta :)