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The 8th term of an AP is zero. Prove that its 38th term is triple its 18th term.
The 8th term of an AP is zero. Prove that its 38th term is triple its 18th term.
Arithmetic Progression | CBSE | Class 10 | Maths | RS Aggarwal
The 8th term of an AP is zero. Prove that its 38th term is triple its 18th term.

Solution:

Suppose that a is the first term and d is the common difference of the AP. Then, we can write that:

Hence, the 38th term of the AP is triple its 18th term.

i

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