Question

Am nevoie urgent!!! ​

Answer 1

Răspuns:

Explicație pas cu pas:

6

a) √3-√2+√3+√2-√3+√2=√3+√2

b)√3-1+2-√3-3+√3=√3-2

c) √2-1+2-√2-2√2=-2√2+1

d)√5-2+3-√5-√5+1=-√5+2

7

a)I√2-1I+I√3-√2I-I1-√3I=√2-1+√3-√2-√3+1=0

b)√5+1+√5-1-√5+2=√5+2

8

a) x=2·3=6

b) x=15·2/√5=30√5/5=6√

c)x=√2(√2-1)/√2(1-√2)=-1