The previous exercise asked you to find a formula for R(a), where its derivative is R'(x) = 100e+5 (1+*+5) and where is the natural logarithm of a dose of a histamine in milimoles (mM). Find a formula for the principle antiderivative of R(a)-the one that has no constant term (that is, the antiderivative with C=0)-and evaluate the principle antiderivative of R() at x=-7.9. Round your answer to three decimal places.