Postgraduate entrance examination 1, error theory and measurement adjustment foundation and spatial measurement foundation 2, photogrammetry and remote sensing 3, cartography and geographic informatio

Postgraduate entrance examination 1, error theory and measurement adjustment foundation and spatial measurement foundation 2, photogrammetry and remote sensing 3, cartography and geographic information system, which is easier? Personally, I think photogrammetry and remote sensing are relatively simple because they contain some basic knowledge of measurement. If you are good at mathematics, error theory and measurement adjustment foundation and spatial measurement foundation, this course should be relatively simple for you, and this course requires higher mathematics and logical thinking; Cartography and Geographic Information System are relatively theoretical courses. I hope my answer is helpful to you, thank you!