Alternative Equation Formats

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MathML

w_{i} = i (k - i + 1) / ((k + 1)^{2} (k + 2))

w_{i} = i (k - i + 1) / ((k + 1)^{2} (k + 2))

$w_ i = i(k-i+1)/((k+1)^2(k+2))$