Formula on blackboard

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Mathematical formula on blackboard

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Size: 5132px × 3421px
Photo credit: © Lyroky / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: algebra, arithmetic, blackboard, calculation, chalk, chalkboard, constant, division, equation, expression, formula, fraction, information, math, mathematical, mathematics, maths, notation, prime, problem, science, sigma, solution, summation, symbol, symbolic, symbols, teach, teaching, trigonometry, variable, variables