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OpenStudy (anonymous):
a)If x+1/x=2, then x^7-1/x^7=? b)If x^2-2√6-5=0, x^3+1/x^3=?
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OpenStudy (funnyguy2):
are you there?
OpenStudy (anonymous):
a) x=1 substitute in second equation ( 1)-(1) =0 b) x=3.146 sub. " " = 31.169
OpenStudy (anonymous):
How did you solved no.2? Could you please explain?
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