Quantum theory is awash in multidimensional integrals that contain exponentials in the integration variables. their inverses. and inverse polynomials of those variables. The present paper introduces a means to reduce pairs of such integrals to one dimension when the integrand contains powers multiplied by an arbitrary function of xy/(x+y) multiplying various combinations of exponentials. https://parisnaturalfoodes.shop/product-category/vit-d3/