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Stock video Instructor helping student to understand complicated problems and formulas

Stock video Instructor helping student to understand complicated problems and formulas

Published: Feb.09, 2018 21:09:13

Author: motortion

Views: 9

Downloads: 0

File type: video / mov

File size: 496.06 MB

Orginal size: 1920 x 1080 px

Available sizes:

SMALLWEB

(320 x 240)

BIGWEB

(640 x 480)

HD720

(1280 x 720)

HD1080

(1920 x 1080)

Level: gold

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