a= 5+2√6 find a^2+1/a^2
Answers
Answered by
11
Answer:
Formula
(a+b)
2
=a
2
+b
2
+2ab
=>a
2
+b
2
=(a+b)
2
−2ab
Given, a+b=5 and ab=6
So, a
2
+b
2
=(a+b)
2
−2ab=5
2
−2×6=25−12=13
Step-by-step explanation:
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Answered by
0
Step-by-step explanation:
_2×6=25_12=13
I think this answer is right
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