1. Does xyx+4y=0 determine y as a function of x? 2.Find the intersection prints of x+y=4 2xy=1 3.Find the intersects of y=x4x 4. Without the use of a calculator, find (no decimals!): sin(-30)=. cos(-30)=. tan(-30)= sin(150)=. cos(150)=. tan(150)= sin(/6)=. cos(/6)=. tan(/6)= sin(/2)=. cos(/2)=. tan(/2)= 5. If f(x)=1/x and g(x)=x1, find: a) f(g(2)) b) g(f(2)) c) f(g(1/2)) d) g(f(1/2)) e) g(f(x)) f) f(g(x))