(x+1/x)(x-1/x) by algebraic expression as soon as possible
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Answer: PLZ MARK IT BRAINLIEST OR I DONT GIVE OF ANY QUESTION GIVEN BY U
Step-by-step explanation:
We will proceed by whats given
x + 1/x = 2
On squaring we get
x^2 + 1/x^2 + 2 = 4
i.e. x^2 + 1/x^2 = 2
Now again squaring the obtained equation
x^4 + 1/x^4 + 2 = 4
x^4 + 1/x^4 = 2 .
Well thats it ! The answer to the question is 2 .
We used the approach of squaring because notice that the term of 2ab would yeild a constant = 2 , because here a and b are reciprocals and hence cancel each other out i.e. a= x and b=1/x
Thanks and regards .
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