Explain each step of this proof that C(5, 5) + C(6, 5) + C(7, 5) = C(8, 6): Proof. C(5, 5) + C(6, 5) + C(7,5) = C(6, 6) + C(6, 5) + C(7,5) = C(7,6) + C(7,5) = C(8,6)
Explain each step of this proof that C(5, 5) + C(6, 5) + C(7, 5) = C(8, 6): Proof. C(5, 5) + C(6, 5) + C(7,5) = C(6, 6) + C(6, 5) + C(7,5) = C(7,6) + C(7,5) = C(8,6)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Explain each step of this proof that C(5, 5) + C(6, 5) + C(7, 5) = C(8, 6):
Proof. C(5, 5) + C(6, 5) + C(7,5) = C(6, 6) + C(6, 5) + C(7,5)
= C(7,6) + C(7,5)
= C(8,6)
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