The domain of F(x) is all real numbers.
This is due to the fact that the function has no undefined points or domain constraints.
10P4 = 10! / (10-4)! = 10*9*8*7 = 5040
9C4 = 9! / 5! 4! = 9*8*7*6 / 4*3*2*1 = 126
its the first one because for example [-12] and 4
the absolute value of -12 is 12 so its greater
C=6.28cm
because C=2pi•r
so in this case C=2•3.14•1
which is C=2•3.14
and that leads to C=6.28cm
hope this helped
