Question

va rog trebuie sa o predau si am uitat de ea​

Answer 1

Explicație pas cu pas:

1) 1/√2 (amplifici cu √2) =√2/2

2/√3=2√3/3

-5/√5=-5√5/5=-√5

9/√6=9√6/6=3√6/2

10/√10=10√10/10=√10

-24/√30=-24√30/30=-12√30/15

2) 3/√8=3/2√2 (amplifici cu √2)= 3√2/4

6/√12=6/2√3=3√3/3=√3

8/√20=8/4√5=2/√5=2√5/5

2/√24=2/2√6=1/√6=√6/6

16/√32=16/4√2=4/√2=4√2/2=2√2

4/√28= 4/2√7=2/√7=2√7/7

2a/√a²×b= 2a/√a²× √b= 2a/a√b=2/√b= 2√b/b