Question

guys, if an AP's general term is An+B, then a=A+B, but d = ??


also tell how can we identify a and d from general term of sum (An²+Bn) ​

Answer 1

Answer:

d = A

Step-by-step explanation:

a +(n-1)d

= A+B +(n-1)d

So, A+B +(n-1)d = An+B

► A + (n-1)d = An

► (n-1)d = An-A = A(n-1)

►d = A

Again, sum = $\frac{1}{2} (2a+(n-1)d)$ = An²+Bn

cannot identify a & d