Tech A says the W engine consists of two VR cylinder banks in a deeper V arrangement to each other. Tech B says rotary engines are very powerful for their size, but they do not use conventional pistons that slide back and forth inside a strait cylinder. Who is correct?

Consider the series where in this problem you must attempt to use the ratio test to decide whether the series converges. compute enter the numerical value of the limit l if it converges, inf if it diverges to infinity, minf if it diverges to negative infinity, or div if it diverges but not to infinity or negative infinity.