Question

Find the missing term in the A.P =-5,__,13__

Answer 1

Answer:

9,17

Step-by-step explanation:

D = 4

A = 5

A3 = a,+(n-1)d = 13

5 + 2d = 13

2d = 8

D = 4

A + D = 9

A + 3D = 5+ 12

A(4) = 17

Answer 2

A.P=5,9,13,17

Step-by-step explanation:

if a=5

c=13,then

b=5+13/2=9.

according to the question

c=b+d/2

then,. 13=9+d/2

9+d=13*2

d=(13*2)-9

=17.

a=5,b=9,c=13and,d=17.