Question

The sum of first n terms of an AP is given by(n²+3n).find the first term &common difference?

Answer 1

Answer:

first term is 4 and common difference is2

Step-by-step explanation:

2

Answer 2

Answer:

n

${1}^{2} + 3 \times 1$

• 1
• $1 + 3 = 4$
• first term is 4