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Class 10 Mathematics Arithmetic Progressions (AP)Finding the $n$th term of an APMediumLevel 65

If (a_n=3n-2), what are the first term and common difference?

Answer and explanation

Correct answer: (a=1,d=3)

Putting (n=1), (a_1=1) and the coefficient of (n) is (d=3). The direct formula gives both values quickly.

Tags

apdirect-formulafirst-termclass10

Frequently asked questions

What is the correct answer to this question?

(a=1,d=3)

Why is this the correct answer?

Putting (n=1), (a_1=1) and the coefficient of (n) is (d=3). The direct formula gives both values quickly.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Arithmetic Progressions (AP). Topic: Finding the $n$th term of an AP.

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