Mathematics
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    arctan1/5
    3(2+5)
    500*20+36*50
    (500*20)+(36*50)
    1/2*3
    1/2*1|3
    (e - 1/e)/2
    (e^1 - e^(-1))/2
    23.5sin14
    arccos((sin29.55633sin23.5-sin5.28)÷cos29.55633cos23.5)
    arccos((sin29.56sin23.5-sin5.28)÷cos29.56cos23.5)
    arccos((sin29.56sin23.5-sin5.28)÷cos29.56cos23.5)
    arccos((sin29.71sin23.5-sin5.28)÷cos29.71cos23.5)
    arccos((sin29sin23.5-sin5.28)÷cos29cos23.5)
    arccos((sin30sin23.5-sin5.28)÷cos30cos23.5)
    arccos((sin33sin23.5-sin5.28)÷cos33cos23.5)
    arccos((sin29.56sin23.5-sin5.28)÷cos29.56cos23.5)
    arccos((sin2956sin23.5-sin5.28)÷cos29.56cos23.5)
    arccos((sin29.55633sin23.5-sin5.28)÷cos29.55633cos23.5)
    arcsin(sin23.5sin5.28+cos23.5cos5.28cos60)

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