Select the expressions which are meaningful. Do not select the expressions which are meaningless and incorrect.
(a dot b) dot c
|a|(b dot c)
a*b + c
(a*b)c
a*(b+c)
|a|dot(b+c)
a dot b of <4,1, 1/4> and <6,-3,-8> is 19.
a dot b of: a=2i+j, b=i-j+k is 2.
Find the angle between the vectors. a = <3,-1,5>, b=<-2,4,3>. Ans: degrees
Find the three angles of the triangle with the given vertices. P(2,0), Q(0,3), R(3,4) Ans: p= degrees q= degrees r= degrees
Determine whether the vectors are orthogonal, parallel, or neither. a=<-5,3,7> , b=<6,-8,2>
Orthogonal
Parallel
Neither
Determine whether the vectors are orthogonal, parallel, or neither. a = <4,6>, b=<-3,2>
Find the angles between the curves at their points of intersection. y=x^2 y=x^3 ans: ❌
Find the scalar and vector projections of b onto a. a=<3,6,-2>, b=<1,2,3> ans: comp_a(b)= proj_a(b) = <>