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Correct Answer : Angular rotation
Explanation : The coordinate transformation changes only the basis of vector, the rest i.e. length and direction after coordinate transformation remains the same.
Correct Answer : Option (D) : 3
Explanation : The coordinate transformation from XYZ frame to X’Y’Z’ frame is carried out by a single rotation about one axis. The other two axes remain in the same plane. But to transform from the ECI coordinate system to the perifocal system, there have to be successive 3 rotations. The first rotation is about Z axis, second is through X’ axis and the final rotation is bout Z’’ axis.
Correct Answer : Option (A) : Orthogonal matrix
Correct Answer : Option (B) : (-x, y)
Explanation : When a point has to be reflected across the y-axis, the y value stays the same and the x value becomes opposite of what it is.
