SOLUTION: Let be : p=1*3*5*...*99/2*4*6*...*100 Find the first digit after the decimal point.

SOLUTION: Let be : p=135...99/246...100 Find the first digit after the decimal point.

Question 1025265: Let be :
p=1*3*5*...*99/2*4*6*...*100
Find the first digit after the decimal point.
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
p=(1*3*5*...*99)/(2*4*6*...*100)
= ((1*3*5*...*99)(2*4*6*...*100))/((2*4*6*...*100)(2*4*6*...*100))
=
=
=
=0.07958923739, using an ordinary scientific calculator.
The answer is now clear.
(C(n,r) is the combination of n things taken r at a time. In your scientific calculator it is indicated as nCr.)
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