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2019dawnmcmillan
08.01.2021 •
Mathematics
Let the vector \mathbf{v}v have an initial point at (1, -2)(1,−2) and a terminal point at (0, 0)(0,0). Plot the vector \mathbf{v}v and afterwards follow the guided steps to analyze the vector.
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Ответ:
Given that the initial point of the vector is (1,-2) and the termination point of the vector is (0,0).
So, the tail of the vector is at point (1,-2) and the head of the vector is at (0,0). The vector,
, has been shown in the figure.
The magnitude of the vector:
The direction of a vector is the angle made by a vector with the positive direction of the x-axis.
From the figure,![\theta = 180 \degree\tan ^{-1} \left|\frac {0-(-2)}{0-1}\right|](/tpl/images/1022/0578/373fa.png)
Hence, the required vector having a magnitude
and direction
has been shown in the figure.
Ответ:
(8r^6s^3 – 9r^5s^4 + 3r^4s^5) – (2r^4s^5 – 5r^3s^6 – 4r^5s^4)
= 8r^6s^3 – 9r^5s^4 + 3r^4s^5 – 2r^4s^5 + 5r^3s^6 + 4r^5s^4
= 8r^6s^3 – 9r^5s^4 + 4r^5s^4 + 3r^4s^5 – 2r^4s^5 + 5r^3s^6
= 8r^6s^3 – 5r^5s^4 + r^4s^5 + 5r^3s^6
Step-by-step explanation:
Its simple math.