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lafaierty
@lafaierty
March 2022
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(Algebra) Onde estou errando?
Sendo x um número real, tal que x + 1/x = 3, obtenha os valores numericos de:
a) x^2 + 1/x^2
Se,
x + 1/x = 3
x^2/x = 3
x = 3
logo,
x^2 + 1/x^2
3^2 + 1/3^2
9 + 1/9
82/9
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(TRIGONOMETRIA) Me ajudem???!! Expliquem passo a passo pfvr.
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