2.Calculeaza:
a)(2+√3) la a doua
b)(1+√2) la a doua
c)(√5+2)la a doua
d)(2√3+1)la a doua
e)(√3-2) la a doua
f)(2-√2) la a doua
g)(3-√3) la a doua
h)(3√2-1)la a doua
i)(1+√3)(1-√3)
j)(3√2-1)(3√2+1)
k)(√3+5)(5-√3)
l)(2√2-3)(2√2+3)

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Răspunsuri

Cel mai inteligent răspuns!
2014-11-17T16:52:48+02:00
4+4√3+3=12+4√3
1+2√2+2=3+2√2
5+4√5+4=9+4√5
12+4√3+1=13+4√3
3-4√3+4=1-4√3
4-4√2+2=6-4√2
9-6√3-3=6-6√3
18-6√2+1=19-6√3
1²-√3²=1-3=-2
3√2²-1²=18-1=17
√3²-5²=3-25=-22
2√2²-3²=8-9=-1
2 4 2