Question

(-1)^2n+(-1)^2n+^1+(-1)^2n+^2+(-1)^2n+^3=?​

Answer 1

Explicação passo-a-passo:

(-1)^(2n + 1) = (-1)^1 * 2^(2n) = -2^(2n)

(-1)^(2n + 2) = (-1)^2 * 2^(2n) = 2^(2n)

(-1)^(2n + 3) = (-1)^3 * 2^(2n) = -2^(2n)

(-1)^(2n) + (-1)^(2n + 1) + (-1)^(2n + 2) + (-1)^(2n + 3)

= (-1)^(2n) - (-1)^(2n) + (-1)^2n - (-1)^2n = 0