Beautiful school girl thinking about complex mathematical signs
Palabras clave
mathematical,
triangle,
formula,
calculus,
study,
classroom,
signs,
symbol,
blackboard,
algebra,
drawing,
black,
learn,
worked,
number,
manuscript,
equation,
physics,
solution,
student,
school,
instructing,
education,
cognition,
mathematic,
board,
college,
lecture,
thinking,
trig,
blackboard,
mathematic,
geometry,
teacher,
calculate,
theory,
lesson,
handwriting,
calculation,
idea,
university,
minus,
woman,
girl,
female,
pretty,
beautiful,
young,
caucasian
){kind=link}