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silly82
28.03.2020 •
Mathematics
Find the inner product for (-8, 2) * (4.5, 18) and state whether the vectors are perpendicular.
a. 1; no
b. 1; yes
c. 0; no
d. 0; yes
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Ответ:
D
Step-by-step explanation:
To find the inner product of two vectors (a,b) and (c,d) you would use the equation (a * c) + (b * d)
So for (-8,2) and (4.5,18) the inner product would be
(-8 * 4.5) + (2 * 18)
= 0
The vectors are only perpendicular when the inner product is equal to 0. Since it is equal to 0 in this case, the vectors are perpendicular.
D - 0; yes
Ответ:
d
Step-by-step explanation:
a•b = (x1 × x2) + (y1 × y2)
= (-8 × 4.5) + (2 × 18)
= -36 + 36
= 0
Hence they are Perpendicular
Ответ: