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Vous pouvez m aider svp merci d avance​

Vous Pouvez M Aider Svp Merci D Avance class=

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MAUDMARINE

Bonjour

A = - 1

B = - 1 x - 1 = 1

C = -1 x - 1 = 1

D = - 1 x - 1 x - 1 = 1 x - 1 = - 1

E = - 1 x - 1 x - 1 = 1 x - 1 = - 1

F = - 1 x - 1 x - 1 x - 1 = 1 x 1 = 1.