If 7 times the 7th term of an AP is equal to 11 times its 11 hterm, th

1.	If 7 times the 7th term of an AP is equal to 11 times its 11 hterm, then find its 18h term.
Answer» nth term of an AP = a + (n-1)d where a is a first term and d is a common difference 77th term = 1111th term 7(a+6d) = 11(a+10d) 7a + 42d = 11a + 110d 4a = -68d a = -17d a + 17d = 0 which is 18th term so 18th term is 0. If you find this answer helpful then like it.

If 7 times the 7th term of an AP is equal to 11 times its 11 hterm, then find its 18h term.

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nth term of an AP = a + (n-1)d where a is a first term and d is a common difference 7*7th term = 11*11th term 7(a+6d) = 11(a+10d) 7a + 42d = 11a + 110d 4a = -68d a = -17d a + 17d = 0 which is 18th term so 18th term is 0.

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If 7 times the 7th term of an AP is equal to 11 times its 11 hterm, then find its 18h term.

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