Question

write the formula of to find nth term in an AP and sum n term is an AP​

Answer 1

Step-by-step explanation:

Answer:-

What is A.P?

• AP is arithmetic progression
• It is used to find number of sequences, or a specific number in a sequence, difference in them etc.

$\boxed{\sf{a_n=a+(n-1)d}}$

• Where $\boxed{\sf{a_n}}$ is the nth term.
• Where a is the first term.
• Where d is the common difference.
• Where n is the number of terms.

$\boxed{\sf{s_n=\dfrac{n}{2}(2a+(n-1)d)}}$

• Here Sn is the Sum of the number of terms.
• a is the first term.
• n is the number of terms.
• d is the common difference.

Answer 2

Answer:

Definition

In mathematics, there are three different types of progressions. They are:

• Arithmetic Progression (AP)
• Geometric Progression (GP)
• Harmonic Progression (HP)

$\boxed{\sf{a_n=a+(n-1)d}}$

Where

• a = First term

• d = Common difference

• n = number of terms

• an = nth term

$\boxed{\sf{s_n=\dfrac{n}{2}(2a+(n-1)d)}}$

Here

• Sn is the Sum of the number of terms.
• a is the first term.
• n is the number of terms.
• d is the common difference.