1. Vector u =< 0,?1,3 > is given. Find a non zero vector vwhich is perpendicular to u. Then ?nd a vector w which isperpendicular to both u and v. Explain the reason for yourselection clearly.
2. Find the slope of the tangent line to the parametric curve x= 5 + sin(3?) and y = ?3 + 2tan? at ? = ?.
