So before I get a calculator out, let's see if there's some simplifications I can do. Two minus two, that's gonna be zero, zero times anything is zero, so this whole thing is zero. Two minus two is zero, three minus three is zero, is gonna actually be zero times zero, so that whole thing is zero. Let's see, this is going to be one minus two, which is negative one, one minus three is negative two, so this is going to be R is equal to 1 3rd times, negative times negative is positive, and so this is going to be two over 0.816 times 2.160, and then plus three minus two is one, six minus three is three, so plus three over 0.816 times 2.160, well these are the same denominator, so actually I could rewrite, if I have two over this thing plus three over this thing, that's going to be five over this thing. So I could rewrite this whole thing, five over 0.816 times 2.160, and now I can just get a calculator out to actually calculate this. So we have one divided by three times five divided by 0.816 times 2.160, the zero won't make a difference, but I'll just write it down, and then I will close that parentheses, and let's see what we get. We get an R of, and since everything else goes to the thousandths place, I'll just round to the thousandths place, an R of 0.946, so R is approximately 0.946.