Question

Q6. If x +
1
x
= 5: find the value of (i) x
2 +
1
x
2
(ii) x
4 +
1
x
4

Answer 1

Answer:

I got it!!

Step-by-step explanation:

So, if x+1x=5

Then, x+x=5-1

x+x=4

2x=4

x=2

Now,

(i) x^2+1x^2

_x=2_

2^2+1×2^2

4+4=8

(ii) x^4+1x^4

_x=2_

2^4+1×2^4

16+16=32

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