the 5 times the 5th term and 8 times the 8th term show 18 th term is zero
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Hey mate!! Hope it will help you.....
First write the 5th term as a5+5 and the 8th term as a8+8
So,
a + 4d + 5 = a + 7d + 8
You will get an equation....
Compare a18 = 0 anf you will get it........
Pls mark as brainliest.....
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