x⁴+1/x⁴=47 then find x+1/x
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Answered by
0
just guessing
it might be (xsquare +1)/(xsquare)
it might be (xsquare +1)/(xsquare)
khushigaba22:
sorry but your answer is not correct
i knew cause it was just a guess
Answered by
3
answer is 3
(x2+1/x2)2=x4+1/x4+2
=47+2
=49
=7(take root)
now, (x+1/x)2=x2+1/x2+2
=7+2
=9
=3(take root of 9)
(x2+1/x2)2=x4+1/x4+2
=47+2
=49
=7(take root)
now, (x+1/x)2=x2+1/x2+2
=7+2
=9
=3(take root of 9)
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