A blackboard full of mathematical formulas. educational concept background
A blackboard full of mathematical formulas. educational concept background.
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Keywords:
backbackgroundblackboardboardcalculatecalculationcalculuscloseupcomplicatedconceptdifficulteducateeducationeducationalequationexamexaminationformulaformulasfullhandwritinghandwrittenhomeworkknowledgelearnlearninglessonmathmathematicalmathematicsnotebookpaperpencilphysicsproblemproofschoolsciencescientificstemstudystudyingteachtesttextbooktheoryuniversitywhitewrite
Username: Jerome696
Editorial: No
Width: 6048 pixels
Height: 4024 pixels
Downloads: 3
Image ID: 174283309