hand drawn math education vector seamless pattern with geometrical figures and formulas chalk blackboard |
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| navigate by keyword : algebra angle backdrop background blackboard calculation calculus chalk chalkboard classroom complex constant cover drawing education endless equation figure formula function geometry green handwriting handwritten illustration lesson math mathematical mathematics numbers paper pattern pythagorean school science seamless sign sketch smart solution study symbol task texture theorem triangle trigonometry university vector white |
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| Hand drawn mathematical vector seamless pattern with formulas and figures.Pythagorean theorem. Chalk on a blackboard. |
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