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which term of the AP is 7,11,14 is 121 |
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Answer» sumit bro 11-7 is 4 not 3 !2! is not a term of this AP i think a =7d =a" - a\'= 11 - 7 = 3 an = 121an =a+(n-1)d121=7+(n-1)3121-7=(n-1)3114=(n-1)3114/3=(n-1)36=n-1n=36+1n=37 |
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