Counting & ProbabilityMedium ShareCounting & Probability · Medium problemUsing Vandermonde's identity, evaluate ∑k=03(5k)(43−k)\displaystyle\sum_{k=0}^{3}\binom{5}{k}\binom{4}{3-k}k=0∑3(k5)(3−k4).Check Show answer Walk through it step by step Practice more like this