Question

for an AP five times the 5th teem is equal to eight times the 8th yerm. find the 13th term of the AP​

Answer 1

Answer:

Step-by-step explanation:

Let "a" & "d" be the 1st term & common difference.

A/Q

5x5th term= 8x 8th term

5(a+4d)= 8(a+5 d)

a= -12d

13th term

=a + 12d

= -12d + 12d (using a= -12d)

=0.