Question

помогите, пожалуйста

Answer 1

$\frac{1}{v + w} + \frac{3vw}{ {v}^{3} + {w}^{3} } = \frac{3vw}{(v + w)( {v}^{3} + {w}^{3})} = \frac{3vw}{v {w}^{3} + {v}^{4} + {w}^{4} + {v}^{3}w }$
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