Write the following formulas as c assignment statements (with appropriate c variable identifiers) a) quadratic formula (with x as an output, and the coefficients a, b, and c as inputs) b) percent difference (with quantities a and b as inputs) c) ohm^? s law (with voltage as an output and current and resistance as inputs) d) law of cosines (with c as an output and a, b, and the angle gamma as inputs)