segunda tarea de series y susesiones numericas

Resolver en su blog las siguientes sucesiones y series Numéricas:




1.- a1= -27 d= 2 12 terminos
-27-2=-25-27-52-79-131-210-341-551-892-1443-2335


2.- a1= -34/9 d= 2/3 9 terminos
-34/9-2/3=32/6+2/3=34/9+2/3=36/12+2/3=38/15+2/3=40/18+2/3=42/21+2/3=44/24+2/3=46/27+2/3
=48/30

3.- a1= 67 d= -3.75 10 terminos
67+3.75=70.75+3.75=74.5+3.75=78.25+3.75=82+3.75=85.75+3.75=89.5+3.75=93.25+3.75=97+3.75
=100.75+3.75=104.5
4.- a1= 128.15 d=-12.35 7 terminos
128.15+12.35=140.5+12.35=152.85+12.35=165.2+12.35=177.55+12.35=18.99+12.35=3134+12.35=43.69

5.- a1= 63/7 d= -9/7 11 terminos
63/7+9/7=72/14+9/7=81/21+9/7=90/28+9/7=99/37+9/7=108/44+9/7=117/51+9/7=126/58+9/7=135/65
+9/7=144/72+9/7=153/79+9/7=162/86
6.- a1= -3 an= 187 n= -75
         
        -3-187)-75            (  184) -75
sn=(__________    sn=___________          sn=13800
          2                              2                    ____________=-6900
                                                                          2

7.- a1= 2 an= 215 n= 164
sn=(2+215)164                 sn=(217)164                 sn=35588
     __________         ________________            ____________=17794
           2                              2                                    2