Find the value of (15 C 5 + 14 C 4)/(14 C 4 + 13 C 3)

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In this video we prove n+1 C r+1 / n C r = n + 1 / r + 1 and find the value of (15 C 5 + 14 C 4)/(14 C 4 + 13 C 3).
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