73720:40+5007*907-56003=6156947 грамм
<span>6156947=6156кг и 947 грамм</span>
<u><em>2)(46,3-52,59)-(-6,75+0,05)=0,41</em></u>
<u><em>1)46,3-52,59=-6,29</em></u>
<u><em>2)-6,75+0,05=-6,7</em></u>
<u><em>3)-6,29-(-6,7)=-6,29+6,7=0,41</em>
<em>_________________________</em>
<em>4)251,9-(-78,01+3,8)-2,01=324,1</em>
<em>1)-78,01+3,8=-74,21</em>
<em>2)251,9-(-74,21)=251,9+74,21=326,11</em>
<em>3)326,11-2,01=324,1</em></u>
Y(-x)=1-cos(-x)/1+cos(-x)=1-cosx/1+cosx -четная