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Man writing math formulas on the screen

Stock Photo:
Image ID: 101328745
Release Information:
Signed model release filed with Shutterstock, Inc
Copyright: Minerva Studio
500x310 6.9"x4.3" (72dpi) 137 KB
1000x619 3.3"x2.1" (300dpi) 481 KB
5070x3136 16.9"x10.5" (300dpi) 5.5 MB
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