Question

if for an AP ,d=5,t18-t13​

Answer 1

Answer:

t18-t13 = a + 17d -(a + 12d)

= a + 17(5) - a - 12(5)

= 0 + 85 - 60

= 25

25 is the answer.

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Answer 2

Answer:

25

Step-by-step explanation:

here is your solution