Respostas

2014-02-06T21:30:31-02:00
a) (√3+√2)(√3-√2) = √3² - √2² = 3 - 2 = 1
b)(√3+√2)² = 3 + 2√6 + 2
2 3 2
2014-02-06T21:35:11-02:00
a)
(√3+√2).(√3-√2)
√3² - √2²
3-2
1

b)
(√3+√2)²
√3²+2.√3.√2+√2²
3+2√6+2
5+2√6
2 4 2