Algebra and trigonometry. Handwritten tasks for exams. equation solution. Theorem and proof in science and mathematics. University preparation. Function Graph and calculations. Hard light exposure.
ID: 1748404316
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- 大图:5983 × 3988 像素·50.66 cm × 33.77 cm·300dpi·JPG
- 中图:1000 × 667 像素·35.28 cm × 23.53 cm·72dpi·JPG
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