2 + 2 = 4

5 × 3 = 15

a² + b² = c²

∫ f(x)dx

y = mx + b

E = mc²

sin²θ + cos²θ = 1

12 ÷ 3 = 4

π

e

φ

∞

Σ

Δ

α

β

γ

θ

λ

μ

2

3

5

7

11

13

17

19

23

29

31

37

+

−

×

÷

=

≠

≈

≤

≥

<

>

√

1

4

9

16

25

36

49

64

81

100

144

169

½

¼

¾

⅓

⅔

⅕

⅘

⅞

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12th Grade/12th Grade Geography

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