Question

Find a6 term from the geometric sequence a1=4 a3=36

Answer 1

....Thank you............

Answer 2

a=d

a3=a+2d

we subtracting the equation 2 and 1

a +2d - a =36-4

2d= 32

d=16

then find

a6 =a+5d

a6= 4 + 5 *16

= 84