gabriella1232002
04.12.2020 •
Mathematics
Use the interactive to adjust the values, r and θ, and choose the correct statements based on your observations.
The point revolves around the pole when r is changed.
The point revolves around the pole counterclockwise when θ is negative.
The point revolves around the pole counterclockwise when θ is positive.
The point gets closer to or farther from the pole when r is changed.
The point gets closer to or farther from the pole when θ is changed.
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Ответ:
2x-3y=20
12x+8y=-192
Solution
In the determinant of the matrix to find the variable "x" [Ax], we replace the coefficients of "x" (2 and 12) by the independent terms (20 and -192 respectively).
In the determinant of the matrix to find the variable "y" [Ay], we replace the coefficients of "y" (-3 and 8) by the independent terms (20 and -192 respectively).