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Grace Dunn
Mathematics
24 April, 22:36
Simplify the expression 7C4
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Alexzander Ray
24 April, 22:52
0
To simplify 7C4 we use the combination formula given by:
nCr=n!/[ (n-r) ! r!]
thus:
In our case we shall have:
n=7 and r=4
7C4
=7!/[ (7-4) !4!]
=5040/[6*24]
=5040/144
=35
The answer is 35
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