Find the common ratio and write out the first four terms of the geometric sequence 7^n+2 / 2.

Question

Find the common ratio and write out the first four terms of the geometric sequence

7^n+2 / 2.

Common Raito is 7

Write the following answers as decimal numbers using 2 decimal places.

a1 = ______

a2= ______

a3= ______

a4= ______

Answer 1

a_n = 7ⁿ⁺² / 2

a₁ = 7³ / 2

a₂ = 7⁴ / 2

a₃ = 7⁵ / 2, etc