TAREA NUM:3

1.- A1= -27 d= 2 12 terminos

R= -25 -23 -21 -19 -17 -15 -13 -11 -9 -7 -5 -3






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

R= -84/27…..-198/81….-432/243….-810/729….-972/2187…


-1458/6561….8748/19683…65610/59049….314928/117147.






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

R= 63.25 59.5 55.75 52 48.25 44.5 40.75 37 3 3.25 29.5


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

R= 115.8 103.45 91.1 78.75 66.4 54.05 41.7


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


R= 54/7 45/7 36/7 27/7 18/7 9/7 0/7 -9/7 -18/7 -27/7 -36/7 -45/7






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


R= 6900.






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

R= 17794.






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

R= 47668.5






9.- a1= -78 d= -49


a1+d (n-1) =-78+-49 (n-1)


-78+-49(n-1) =-127(n-1)


(n-1) = -127


n= -127+1


n= -128






10.- a1= 345 d= -169

a1+d(n-1) = 345+-169 (n-1)


345+-619 (n-1) = 176 (n-1)


(n-1) = -176


n= -176+1


n= -177