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Popular >

20 nCr 1

Solution

20 nCr 1

Solution

20

Solution steps

= \frac{n !}{r ! ( n - r ) !}

Plug in

n = 20, r = 1

= \frac{20 !}{1 ! ( 20 - 1 ) !}

\frac{20 !}{1 ! ( 20 - 1 ) !} = 20

= 20

Popular Examples

100 C 3

median of 121,181,182,185,186,187,188,189,192,197,199,200,215,888,890 median

121, 181, 182, 185, 186, 187, 188, 189, 192, 197, 199, 200, 215, 888, 890

std of 470,491,552,566,603,658,739,782,830,928,972,1092 standard deviation

470, 491, 552, 566, 603, 658, 739, 782, 830, 928, 972, 1092

arithmeticmean of 2,2,5,7,10,10 average

2, 2, 5, 7, 10, 10

4 c h oose 2

Frequently Asked Questions (FAQ)

What is 20 nCr 1 ?
The answer to 20 nCr 1 is 20