Page 1: plus/positive, minus/negative, divide, multiple/times, percent, equal, greater than, less than, squre root, not equal/inequality
Page 2: pi, parentheses, brackets, asterisk, empty set, infinity, beta, alpha, integral, sum of
Page 3: because, therefore, plus or minus, minus or plus, approximately equal, less than or equal to, greater than or equal to, factorial, similar to, parallel to
Page 4: absolute value of x, congruent to
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Nghe: Tu La Coi Phuc
Nghe: Tu La Coi Phuc