If x=3+√8, find the value of x^2+1/x^2...|| Class 9 || rd question ||

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If x=3+√8, find the value of x^2+1/x^2...|| Class 9 || rd question ||
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Thank you for simple solution & explanation... Other videos of YouTube made it more ambiguous 😂

harsha
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Excuse me sir, ye formula ka naam bata sakte ho kya aapne sirf ye ki a+b whole square hai or a×2×b aisa kuch

sanchigawas
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But usko rationalize kyun krte hain simple b to ho skta hai... 1st se samjh nhi ai

irammaqsood
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If alpha and Beta are zeroes of the quadratic polynomial f(x) =x²-1, find a quadratic polynomial whose zeroes are 2alpha/beta (2a/B) and 2beta/alpha(2B/a)

Pls solve this

txichibergainstain
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If the product of the zeroes of x²-3kx+2k²-1 is 7 then the value of k are and


Plzzz sir ye wala Kara doooo plzzzz

priyasrivastava