Question

Simplify the expression. Anyone know the answer to this?

Answer 1

The answer is (C) 1814400

Explanation:

The given problem is Permutation

The formula for permutations can be written as

n P r = n ! / ( n − r ) !

₁₀P₈ = 10! / (10-8) !

= 10! / 2!

=1814400

Answer 2

1814400

Explanation:

This is a permutation. It means 10 objects taken 8 at a time. Order of the objects matters in permutations.

The formula for permutations

n P r = n ! / ( n − r ) ! ! means factorial

where n is the number of items and r is the number of objects taken together

10P8 = 10! / (10-8) !

= 10! / 2!

=1814400