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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def computeRange(corners):
 """ Determine the range spanned by an array of pixel positions. """

    x = corners[:, 0]
    y = corners[:, 1]
    _xrange = (np.minimum.reduce(x), np.maximum.reduce(x))
    _yrange = (np.minimum.reduce(y), np.maximum.reduce(y))
    return _xrange, _yrange