Question

Find 11" term of AP-5, -5/2, 0, 5/2 ---------​

Answer 1

Answer:

1. d = -5/2 - (-5)
2. d= -5

a=-5

n= 11

a+(n-1)d

-5 + ( 11-1)-5

-5 +10×-5

-5 -50

-55

Answer 2

Answer:   -80

Step-by-step explanation:      

a=-5

d=-5/2-5

 =-15/2

n=11

An=a+(n-1)d

     = -5+(11-1)-15/2

     =  -5+(10 X -15/2)

     =-5-75

     =  -80

so,the 11th term of this given A.P is -80