# CBSE Class 10-Mathematics: Chapter – 5 Arithmetic Progressions Part 12 (For CBSE, ICSE, IAS, NET, NRA 2022)

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**Question 21**:

Find for the A. P

**Answer**:

**Question 22**:

Find the common difference and write the next two terms of the AP

**Answer**:

Hence, it is AP.

**Question 23**:

Show that sequence defined by is an AP.

**Answer**:

So

Hence, it is AP.

**Question 24**:

The first term of an AP is and common difference . Find its general term.

**Answer**:

**Question 25**:

How many terms are there in A. P?

**Answer**:

**Question 26**:

In an AP, the sum of first terms are . Find its 2^{nd} term

**Answer**:

Put

**Question 27**:

Show that the progression is an AP

**Answer**:

And

And

Hence, it is an AP.