Question

which term of AP 10,7,4........is 91​

Answer 1

Answer:

$\huge\underline\mathbb\red{AnSwEr}$

Step-by-step explanation:

tn=a+(n-1)d

91=10+(n-1)-3

81=(n-1)-3

81/-3=(n-1)

-27=(n-1)

-27-n+1=0

-26-n=0

n=-26