P1vâ ol8 â uk1 r1n0

    p1vâ ol8 â uk1 r1n0 â i4 â uk1 r1n0 dm uk1 cos â km 28q b m11n â k uk1 â km 28q c m11n â k uk1
    35 min $P1V®-Ol8 ¥uk1 R1n0