Sin(x-y)+sin(x-y prove the identity

Step-by-step explanation:

We use the sum and difference identities.

Remeber the sum difference identity is

and

So we get

Combine like Terms.

We have provided it.

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.

mean, 40.6

step-by-step explanation: