- #1
vorcil
- 398
- 0
groups: Vectors / Scalars / dosen't make sense
Which of these groups do the following belong too
1: a.b + b.c
2: a+(a.b)
3: (b.b)b+a
4: (a.b)(b.c)
5: (a.b).c
a.b + b.c is adding the dot product of two vectors, then adding them so a Scalar for the final
a+(a.b) is adding a vector to a product of two vectors so dosen't make sense e.g (1,1,1)+5
(b.b)b+a also dosen't make sense, since it is the dot product of a vector added with two added vectors e.g (b*b=5)*(2,1,0)+(1,1,1)
(a.b)(b.c) makes sense, and is a scalar, because the two dot products produce scalars which are then multiplied by each other
(a.b).c is a vector because you get a scalar from a.b then multiply each component of C to create a new vector
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hoping someone could check for me XD thanks
Which of these groups do the following belong too
1: a.b + b.c
2: a+(a.b)
3: (b.b)b+a
4: (a.b)(b.c)
5: (a.b).c
a.b + b.c is adding the dot product of two vectors, then adding them so a Scalar for the final
a+(a.b) is adding a vector to a product of two vectors so dosen't make sense e.g (1,1,1)+5
(b.b)b+a also dosen't make sense, since it is the dot product of a vector added with two added vectors e.g (b*b=5)*(2,1,0)+(1,1,1)
(a.b)(b.c) makes sense, and is a scalar, because the two dot products produce scalars which are then multiplied by each other
(a.b).c is a vector because you get a scalar from a.b then multiply each component of C to create a new vector
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hoping someone could check for me XD thanks
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