Question

calcule:
a) o 5° termo da PG: 1,51,...
b) o 10° termo da PG: 9,27,...

Answer 1

Resposta:

A)

R = 51 / 1 = 51

A₅ = a₁ . q⁴

A₅= 1 .51₄

A₅= 6765201

B)

R= 27/ 9 = 3

A₁₀ = A₁ . q⁹

A₁₀ = 9 . 3⁹

A₁₀ = 9 . 19683

A₁₀ =177147