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Consider the transformation t:x=5665u−3365v,y=3365u+5665v.

a. Identify the transformation type
b. Discuss the effect on coordinates
c. Determine the matrix representation
d. Calculate the determinant

User BubbaT
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1 Answer

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Final answer:

The transformation is a linear transformation that could involve rotation and/or scaling. Its matrix representation is a 2x2 matrix with entries derived from the given equations, and the determinant of this matrix is 1, indicating that the transformation is area-preserving.

Step-by-step explanation:

The student has presented a transformation represented by t: x = 5665/3365u − 3365/5665v, y = 3365/5665u + 5665/3365v.

  1. To identify the transformation type, we can observe that the transformation involves combinations of u and v for both x and y without any trigonometric, exponential or logarithmic functions. This suggests that it's likely a linear transformation, possibly involving rotation and/or scaling.
  2. The effect on coordinates will depend on the specific values of u and v, but generally, this transformation will map the point (u, v) in the uv-plane to a new point (x, y) in the xy-plane, possibly rotating and scaling the figure represented by a set of points.
  3. The matrix representation of this transformation is found by rewriting the given equations in matrix form. It can be represented as a 2x2 matrix with the top row being [5665/3365, -3365/5665] and the bottom row being [3365/5665, 5665/3365].
  4. To calculate the determinant of the transformation matrix, we use the formula ad - bc, where a, b, c, and d are the entries of the 2x2 matrix. For our matrix, the determinant would be (5665/3365)*(5665/3365) - (-3365/5665)*(3365/5665), which simplifies to 1, indicating the transformation is area-preserving.

User RJ Alten
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