a=(2-√5)/(2+√5) ; b=(2+√5)/(2-√5) then find the value of (a +b)³
with full method pls
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Answer:
-5832
Step-by-step explanation:
a=2-√5/2+√5
b=2+√5/2-√5
(a+b)^3 = -5832
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