In an ap if 7 times 7th term is equal to 11 times 11th then find 18th term
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Answer:
Step-by-step explanation:
7A7=11A11
7[A + 6D] =11[A+10D]
7A+42D=11A+110D
4A=-68D
4[A+17D]=0
A+17D=0
A18=A+17D
A18=0
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