Functions with this property can be written in the form "f of x plus f of negative x equals zero" and display rotational symmetry when rotated 180 degrees around the origin.
Functions with this property can be written in the form "f of x plus f of negative x equals zero" and display rotational symmetry when rotated 180 degrees around the origin. No perfect numbers have yet been discovered with this property, but all (*) primes except two have this property. For 10 points, name this group of numbers that can't be divided by two.
Functions with this property can be written in the form "f of x plus f of negative x equals zero" and display rotational symmetry when rotated 180 degrees around the origin.
odd numbers