Labels:barrier reef | bulletin board | clock | earth | grass | map | poster | sky | windowpane OCR: sin br Ths -1 dx 0< s<2 2T(s) sinST tan ax dx TT fiir fur T fir lal sin r COS ax dx fiir a fiir a\ sin CoS 71 dx dx T/2 sin dx 1+ k 1n fur [k sin fiuir sin2
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