Mathematics
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    (1/137)^8
    (π1/137)^8
    π1/137
    0.9^100
    sin2
     sin2
    1500(1+0.2)
    lg1.196
    =[(26%-22.45%)2×10%+(11%-22.45%)2×10%+(15%-22.45%)2×20%+(27%-22.45%)2×25%+(21%-22.45%)2×20%+(32%-22.45%)2×15%]1/2
    【(0.2-0.1)^2*0.3+(-0.05-0.1)^2】^1/2
    [(20%-10%)2×0.3+(10%-10%)2×0.5+(-5%-10%)2×0.2]1/2
    0.7742*300*0.5742
    (5.6044-4.6610)/0.6044
    ( 1 400 000×2/5)/2+( 1400 000 - 1 400 000×2/5/2) ×2/5/2
    ( 1 400 000×2/5)/2+( 1400 000 - 1 400 000×2/5) ×2/5/2
    arccos0.9375
    arccos0.7601
    arccos0.9576
    9.5*cos65
    arccos0.95=

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