Question

For the AP a,5,13,21,29,......... write the value of ‘a’

Answer 1

Answer:

here d = 8

so a +d = 5

=> a = 5 - 8

=> a= -3

hope it helps u ☺.

Answer 2

Given:

• d = 13 - 5 = 8
• an = 29
• n = 5

To Find:

• Find a

Solution:

an = a + (n - 1) d

a = an - (n - 1)d

a = 29 - (5 - 1) 8

a = 29 - 4 x 8

a = 29 - 32

a = -3

Therefore, the first term, a = -3