Math, asked by aarya1223, 10 months ago

20c16 - 19c16 = ?
What is the answer

Answers

Answered by fatimainsha02

0

Answer:

=3876

Step-by-step explanation:

: 19C16 + 19C15 - 19C16 = 19C5 ........ ( nCr + nCr-1 = n+1Cr )

: 19! ÷ 15! ( 19-15 )!

: 19! ÷ 15!4!

: 19×18×17×16×15! ÷ 15!×4×3×2×1

: 19×6×17×2

= 3876

● 20C16 - 19C16 = 19C5 = *3876*

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