Question

find the 11th term from the last term (towards the first Term) of the AP 10,7,4,......60​

Answer 1

Answer:

it should be -60

let a=-60, d=3 n=11

aₙ=a+(n-1)d = -60+(11-1)3

   = -60+30= -30

a₁₁= -30

Step-by-step explanation:

Answer 2

The correct AP is 10,7,4,.......-60

Common difference =-3

Reversing the AP

-60,-57,-54,........10

a11=a+(n-1)d

=a+10d

=-60+10(+3) { notice it is not -3 }

-60+30

= -30