Let a and b be constant vector and let c be the vector defined by the equation
c=(cost)a+(sint)b
a.) for what value(s) of t is c parallel to a?
b.) when is c parallel to b?
c.) Can c ever be parallel to a+b?
d.) can c ever be perpendicular to a+b?
c=(cost)a+(sint)b
a.) for what value(s) of t is c parallel to a?
b.) when is c parallel to b?
c.) Can c ever be parallel to a+b?
d.) can c ever be perpendicular to a+b?