Question

Find the 11th term from the last term og the ap 27,23,19..................,-65

Answer 1

Find the 11th term from the last term og the ap 27,23,19..................,-65

SOLUTION:--

27 , 23 , 19 ,...., - 65 is an A.P

a = 27 ,
common difference = a2 - a1
d = 23 - 27 = - 4

Rewrite the A..P ,

- 65 , - 61 , - 57 , ... 19 , 23 , 27

HERE, First term = a = - 65
Common Difference = a2 - a1
d = - 61 - ( - 65 )
d = -61 + 65
d = 4
n = 11

nth term = an = a + ( n - 1 )d
a11 = -65 + ( 11 - 1 ) 4
= -65 + ( 10 × 4 )
= -65 + 40
= -25

HOPE IT'S HELP YOU...
THANK YOU...

Answer 2

The 11th term is -25...