Question

all formulas of arthematic progression chapter class 10 formulas​

Answer 1

Answer:

1. Tn = a+(n-1)*d
2. Sn = n/2*(2a+(n-1)*d)
3. Sn = n/2*(a+l)

Step-by-step explanation:

Tn be nth term .

Sn be sum

n be the no of term

a be the first term.

d be common difference

l be last term