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jenni333
23.07.2019 •
Mathematics
Find the vector of length 2 making an angle of 45^\circ with the x-axis. round to 6 decimals places or give an exact answer in terms of sine and cosine.
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Ответ:
By using trigonometric relations, we will see that the vector is:
V = < 2*cos(45°), 2*sin(45°) >
How to get the components of the vector?If you think this like a right triangle, we have that the length of the vector is the hypotenuse, the x-component is the adjacent cathetus and the y-component is the opposite cathetus.
Then using the sine and cosine trigonometric relations we will get the components:
x-component = 2*cos(45°) y-component = 2*sin(45°).Then the vector is just:
V = < 2*cos(45°), 2*sin(45°) >
If you want to learn more about vectors, you can read:
link
Ответ:
v = 2 * (cosine (45) i + sine (45) j)
Rewriting we have:
v = 2 * (cosine (45) i + sine (45) j)
v = 2 * ((0.707107) i + (0.707107) j)
v = (1.414214) i + (1.414214) j
the vector of length 2 making an angle of 45 with the x-axis is:
v = (1.414214) i + (1.414214) j
Ответ: