Question

The scalar or dot product of vectors (3i-2j+4k) and (2i+2j-3k) is:
A. -9
B. -10
C. -11
D. 10
Right answer is B.

Solution: i.i=1 j.j=1 k.k=1
(3i-2j+4k)(2i+2j-3k)
3i.2i-2j.2j-4k.3k
6-4-12
6-16
-10.
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Answer 1

Answer:

B is the right answer

Explanation:

i.i=1 j.j=1 k.k=1

(3i-2j+4k)(2i+2j-3k)

3i.2i-2j.2j-4k.3k

6-4-12

6-16

-10.

Answer 2

Answer:

Here is your answer and solution

Explanation:

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