Question

if a=
$3 + 2 \sqrt{2}$
then find the value of
${a}^{2} + \frac{1}{ {a}^{2} }$
​

Answer 1

Step-by-step explanation:

a = 3+2√2

→1/a = 3-2√2

Now ,

a^2 + 1/a^2 = (3+2√2)^2 +(3-2√2)^2 = 34

Answer 2

hope it helps !!

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