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If 9th term of an A.P …

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If 9th term of an A.P is 0, show that 29th term is twice its 19th term

Posted by Dia Khurana@1608 6 years, 10 months ago

Gaurav Seth 6 years, 10 months ago

Let the first term of an A.P. = a

And common difference = d

Given: 9^th term of an A.P. is 0. Therefore,

We have to prove that

Thus,

And

From equation (2) and (3),

Hence proved

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