Determine weather the following is real or complex
i^6-122-7i^2

What are the vertical asymptotes of the function f(x) =5x+5/x2 + x-2

Manny bought 12 pounds of vegetables at the supermarket. 75% of the vegetables were on sale. how many pounds of vegetables were not on sale? 98 points : )

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)