1.
[tex] - 3 \sqrt{3} + 2 \sqrt{3} = - \sqrt{3} [/tex]
2. supraunitar= A/B, unde A> B
Deci raspunsul este b)
3. d) 12°
4. c)
5.
[tex] \frac{( - 7 \sqrt{2}) - 2 \sqrt{2} + 8 \sqrt{2} + 13 \sqrt{2} }{4} = \frac{ - 9 \sqrt{2} + 21 \sqrt{2} }{4} = \frac{12 \sqrt{2} }{4} = 3 \sqrt{2} [/tex]
Deci Cristina a rezolvat corect.
