Sec. 2.1

#2a,b) Plots--Hopefully will be posted soon.

#6b.i) v= (-1,2), so ans = 1/(sqrt(5))*(-1,2)

Sec. 2.2

#1a) u dot v = 2sqrt(3) => theta = pi/6.

#1d) u dot v = 2sqrt(2) => theta = 0.752 radians.

Sec. 2.2

#14a) The plane consists of all points (x,y,z) which satisfy (x,y,z) = s*u + t*v + (1,0,1).

#14b) The dot product n and u is zero as well as the dot product between n and v.

Sect. 2.3

#5a) s*u + t*v + P = s*(1,2,1) t*(3,-3,-1) + (1,0,1)

#5b) s(P-Q) + t(R-Q) + Q = s(3,-2,1) + t(3,-3,-1) + (-2,3,1).

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Last modified: Fri Oct 25 15:33:39 1996