Question

o sexto termo do desenvolvimento de (2x+1/x)¹° é:
a)8064
b)13440x²
c)3360x-²
d)13440X-²
e)8064x²

Answer 1

Resposta:

8064

Explicação passo-a-passo:

T k+1=T 6

k+1=6

k=6-1

k=5

T k +1= (n k ) .(a)^(n-k) .(b)^k

T 6= (10 5) .(2x)^(10-5).(1/x)^5

T 6= 252 .(2x)^5. (1/x^5)

T 6= 252.(32.x^5).(1/x^5)

T 6= 252.(32)

T6 = 8064