Question

Write each as the sum of two terms, each

in the form tn,r.
a) t19,11
b) t25,16
c) t14,7​

Answer 1

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Answer:

a) t18,10 + t18,11

b) t24,15 + t24,16

c) t13,6 +t13,7

Explanation:

Each term of Pascal's triangle is the sum of the two terms above it in the triangle:

tn,r = t(n-1),(r-1) +t(n-1),r

__

a) t19, 11 = t18,10 + t18,11

b) t25,16 = t24,15 + t24,16

c) t14,7 = t13,6 +t13,7