Answers

2014-05-22T19:51:28+05:30
A = 5 +2√6
b = 1/(5+2√6) = (5-2√6)/1 = 5-2√6
a + b = 10
ab = 25 - 24 = 1
(a+b)² = a²+b²+2ab
(10)² = a²+b²+2*1
100 = a²+b²+2
a²+b² = 98
(a+b)³ = a³+b³+3ab(a+b)
(10)³ = a³+b³+3*1*10
1000 = a³+b³+30
a³+b³ = 970
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