heya guys.....!!!!!
One more question.....!!!!!
Please help me.....!!!!!
QUESTION.....>>>
If 7 times the 7th term of an AP is equal to 11 times the 11th term, find its 18th term.....!!!!!
Please mates its really really very urgent.....!!!!!
xNEVERMINDx:
but from them i don't get
by the way now u can answer on my question
7a+42d-11a-110d=0
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Answers
Answered by
2
7(a+6d)=11(a+10d)
18th term =?
7a+42d=11a+110d
now snd to lhs
7a+42d-11a-110d=0
-4a-68d=0
-4a=68d
a= -17d//
now the 18th term =a+ 17d
=-17d+17d.....caz we know that a=-17d
= 0//
therefore 18th term is 0.
Hopes it helps u
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Answered by
1
hey mate this is your answer
answer
therefore 18th term is 0
hope this helps you
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