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close up of math formulas on a blackboard

Stock Photo:
Image ID: 77290276
Release Information: N/A
Copyright: Picsfive
Small
500x353 6.9"x4.9" (72dpi) 156 KB
Med
1000x705 3.3"x2.4" (300dpi) 586 KB
Large
3405x2400 11.3"x8.0" (300dpi) 3.7 MB
Super
6810x4800 22.7"x16.0" (300dpi) approx.13.1 MB
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