Question

if x= 3+√8 and y=3-√8 then 1/x^2 + 1/y^2 =

Answer 1

Here it is.. Hope it is helpful for you

Answer 2

Answer:

34

Step-by-step explanation:

Given: x=3+eight–√

Squaring on each sides, we get

x2=(three+8–√)2

x2=9+8+sixty eight–√

x2=17+122–√

Then, 1x2=17−122–√

therefore, x2+1x2=17+122–√+17−122–√

=34

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