Math, asked by jagrajsingh, 1 year ago

$x + 1 \div x = 7findxsquare + 1 \div x2$

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shadowsabers03: 47 is the answer.

jagrajsingh: I know but how can I solve it

shadowsabers03: Square both sides. We get x^2 + 1/x^2 + 2 = 49.

jagrajsingh: okkh thax

shadowsabers03: Then subtract 2 from both sides. We get x^2 + 1/x^2 = 47. That's all!

shadowsabers03: You're welcome.

Answers

Answered by dhruvsh

(x+1/x) = 7
(x+1/x)^2 = 49
x^2 + 1/x^2 + 2*x*1/x = 49
x^2 + 1/x^2 = 49-2
Therefore,
x^2 + 1/x^2 = 47

Hope this helps you !!

shadowsabers03: strem?

dhruvsh: PCM

dhruvsh: but why are you asking?

dhruvsh: and who are you?

dhruvsh: non medical

dhruvsh: hmm

Answered by DeeptiMohanty

x+1/x=7
Now on squaring both sides....
We get,
x+1/x²+ 2(x)(1/x)=49
x²+1/x² = 49-2=47
Hope this helps you....✌

jagrajsingh: thx sis

DeeptiMohanty: ur welcome ....net slow hei .... that's why i m not able to answer ur question

DeeptiMohanty: fastly

jagrajsingh: okk

jagrajsingh: can u solve it on notebook

jagrajsingh: if u are not busy

jagrajsingh: otherwise ok

DeeptiMohanty: srry net is slow .....not able to upload pic

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