Todas as questões do ENEM

Considere as matrizes

Se o determinante da matriz E é igual a 3 então o determinante da matriz produto F.G é igual a

Sejam f e g funções reais de variável real definidas por f (x) =e g (x) = x4 – 10x2 + 9. Podemos afirmar corretamente que a interseção entre o gráfico de f e o gráfico de g é constituído exatamente por

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(The Economist, May 22nd, 2010)

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(The Economist, May 22nd, 2010)

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(The Economist, May 22nd, 2010)

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All things bright and beautiful,

All creatures great and small,

All things wise and wonderful,

The Lord God made them all.

Each little flower that opens,

Each little bird that sings,

He made their glowing colours,

He made their tiny wings.

He gave us eyes to see them,

And lips that we might tell,

How great is God Almighty,

Who has made all things well.

by Cecil F. Alexander