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O método mais simples para resolver uma raíz quadrada com número decimal é transformar o número decimal em fração, tal como fizemos no exemplo. Após formarmos a fração aplicamos uma das propriedades da radiciação onde podemos desmembrar tanto o numerador quanto o denominador e deixar ambos separadamente dentro da raíz. Procedemos a calcular raíz tanto do numerador quanto do denominador e simplificamos. #raizquadrada #raizquadradadedecimal #numerosdecimais
34
2
Resolução passo a passo 1. Começamos com a expressão: ! / ! = 3! 2. Decompondo o fatorial do numerador: ! = \ ! 3. Substituindo na fração: \ ! / ! = 3! 4. Cancelando ! no numerador e no denominador: x+3 = 3! 5. Sabendo que 3! = 3 x 2 x 1 = 6: x+3 = 6 6. Resolvendo: x = 3 7. Calculando x^2 + 2: x^2 + 2 = 3^2 + 2 = 9 + 2 = 11 Resposta final: x^2 + 2 = 11 Créditos: @dox_maths — um perfil incrível, que transforma desafios matemáticos em aprendi
9
Comentario
Cargando
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