Question

. For an A.P. S10 = 210, a = 3 . Find ‘d’.​

Answer 1

Answer:

n = 10

a = 3

d = ?

S10 = n/2(2a+(n-1)d)

210= 10/2[2(3)+9(d)]

210= 5(6+9d)

210= 30+45d

45d = 180

d = 180/45

d = 4

Answer 2

Step-by-step explanation:

d=4 Is the answer i solved ot