Question

Find the 20th term from the end of the A.P. 6, 10, 14, 18.................174.

Answer 1

Answer:

Step-by-step explanation:

-from a.p. we get,

a= 6

d= 4

n= 20

a20=a+19d

a20=6+ 19(4)

a20=6+ 76

a20= 82

Answer 2

Answer:

Step-by-step explanation:

an= a + (n-1)d

here a = 174 n =20 d=-4 (negetavie of real d)

174+19(-4)

=174-76

=98