Question

The 20th term
of the A.p is 40
and common difference is 2
then find
its second term.​

Answer 1

answer:

n=20,c=2,an= 40

an = a+(n-1)d

=40=a+(20-1)2

=40=a+19×2

=40=a+38

= a=2

Answer 2

QUESTION :

The 20th termof the A.p is 40 and common difference is 2

then find its second term.

ANSWER :

a20 = 40

d = 2

a2 = ?

an = 2a + ( n-1) d

a20 = 2a + (20‐1)2

40 = 2a + 19×2

40 = 2a + 38

40‐38 = 2a

2 = 2a

a = 2/2

.: a = 1

d = 2

a2 = a + d

= 1 + 2

= 3

.: its second term is 3 .

HOPE IT HELPS YOU :‐)