25 points

write the complex number in the form a + bi.

square root of six(cos 315° + i sin 315°)

a) square root of three over two minus square root of three over two times i
b) square root of six minus square root of sixi
c) square root of three minus square root of threei
d) square root of six over two minus square root of six over two times i

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.