tarea 3

1.- a1= -27 d= 2 12 terminos

RESOLVER:

A1=-27+2= -25

SUCESION:

-27, -25, -23, -21, -19, -17, -15, -13, -11, -9, -7, -5

2.- a1= -34/9 d= 2/3 9 terminos

RESOLVER:

A1= -34/9 + 2/3 = 18+102/27 = 120/27 +2/3 = 122/81

SUCESION:

40/9+2/3 = 42/27 , 44/81, 46/243, 48/729, 50/2187, 52/6561, 54/19683, 56/59049

3.- a1= 67 d= -3.75 10 terminos

RESOLVER:

A1=67+(-3.75)= 63.25

SUCESION:

63.25, 67, 70.75, 74.5, 78.25, 82, 85.75, 89.5, 93.25, 97

4.- a1= 128.15 d=-12.35 7 terminos

RESOLVER:

A1=128.15+(-12.35)= 115.8

SUCESION:

115.8, 128.15, 140.5, 152.85, 165.2, 177.55, 189.9

5.- a1= 63/7 d= -9/7 11 terminos

RESOLVER:

A1=63/7 + (-9/7)=63 + 441/49 = 504/49

SUCESION:

63/7, 72/7, 81/7, 90/7, 99/7, 108/7, 117/7, 126/7, 135/7, 144/7, 153/7

6.- a1= -3 an= 187 n= -75


SN=(-3+187)-75 /2 =13800/2 = 6900

7.- a1= 2 an= 215 n= 164

SN=(2+215)164 /2= 35588/2 =17794

8.- a1= 21 an= 276 n= 321

SN=(21+276)321 /2= 95337/2= 47668.5

9.- a1= -78 d= -49

RESOLVER:

A1=-78+(-49) = -127


SUCESION:

-127, -176, -225, -274, -323, -372, -421, -470, -519, -568

10.- a1= 345 d= -169

RESOLVER:

A1=345+(-169)=176

SUCESION:

176, 345, 514, 683, 852, 1021, 1190, 1359, 1528, 1697