Răspuns:
2. 1\400.000 distanta = {7,2}-distanta= 399.99.2
Distanta reala : 399.99.2
3. mx² - mx = 12
mx + ²n - mx = 12
mx-mx=10²
m=10²{-²}
m=8²
solutia 3²=8²{3²|-|} = 2
4. ABC = 120°
AD=ABC
Masura unghiului= 120° +{AD=ABC}²+³=120°ABC+{²+³} = 120° ⁴
✌:3