true or false

|uv|is less than both|u|and|v|.

Ifu points east and v points south, then u+vpoints southeast.

The linex=3+t,y=4+2t,z=2tand the plane x+2y+5z=3are parallel

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Ifu points east and v points south, then uv points southeast.

The vector<3,1,2> is parallel to the plane 6x2y+4z=1

If curvature(t)=0 for all t , the curve is a straight line.

The vectorsr(t)andr(t) are parallel for all values of t in the domain.

The curve r(t)= lies on a unit sphere.

Ifr(t)=+Cand r(0)=<0,0,0>, then C=<0,0,0>.

Ifr(t)=0, thenr(t)=, where a,b,andc are real numbers.

The curver(t)= is parameterized by its arc length.

The parameterized curver(t)=<3cost,4cost,5sint> has arc length as a parameter.

he curver(t)=<3sint,5cost,4sint>lies on a sphere.