Question

pre calculus help...

Answer 1

@TheSmartOne

Answer 2

@Nnesha can you please help with this, what symbol is that?

Answer 3

P=permutation
collections of things
for permutation order is important (you will need this for word problem)
formula to solve \[\huge\rm P(n,r)=\frac{ n! }{ (n-r)! }\]

Answer 4

\[\huge\rm ^np_r\]

Answer 5

what does n and r stand for?

Answer 6

\[\huge\rm ^np_r\] \[\huge\rm ^3P_2\] in this example n is 3 and r is 2