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2015 VT provpass2 xyz uppg 6

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Inlägg totalt 2

Medlem sedan 2015-10-19

Kan nån hjälpa mig med lösningen? Hur ska man tänka ? Ska man logaritmera direkt eller? (Svaret är NOLL)
4^x - 4^-x =0

     
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Inlägg totalt 1

Medlem sedan 2015-02-19

4^x - 4^-x
4^x = 4^-x
x = - x
2x = 0
x = 0

     

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