Question

if a ^2+ 1 /a^2= 23, find the value of a +1/a

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Answer 1

Answer:

Your answer is 5

Step-by-step explanation:

Because:

a^2 +1/a^2 = 23

( by the formula of (a+b)^2)

=a^2 + 1/a^2 + 2 = 25

Therefore,

a + 1/a = root 25

= 5

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