Question

if (x-1/x) =3. Find
(i)x^2+1/x2
(ii)x^4+1/x^4​

Answer 1

Answer:

X-1/x=3

X-1=3x

2x=-1

X=-1/2

i) (-1/2)^2 + 1/(-1/2)×2

=1/4 + (-1)

= - 3/4

Step-by-step explanation:

ii) (-1/2)^4 + 1/(-1/2)^4. (-1/2)^4=1/16

=1/16 + 1/(1/16).

=1/16 + 16

=256/4

=64

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