Question

6 times of 6th term is equal to 7 times of 7th time of an A. P. Then the 13th term is

Answer 1

Answer:

Given that,

6(a+5d)=7(a+6d)

6a+30d=7a+42d

6a-7a=12d

-a=12d

a+12d=0

Then, a13=a+(12)d

a13=-12d+12d=0

Step-by-step explanation:

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