personyperson123456 personyperson123456

22-09-2020
Mathematics

contestada

Suppose T(n) = n(n +1)/2. Find T(10).

a
45
b
45/2
c
55/2
d
55

Respuesta :

Hrishii Hrishii

22-09-2020

Answer:

D. 55

Step-by-step explanation:

[tex]T(n) = \frac{n(n +1)}{2} \\ \\ T(10) = \frac{10(10 +1)}{2} \\ \\T(10) = \frac{10\times 11}{2} \\ \\T(10) = 5 \times 11 \\ \\ \huge \red{ \boxed{T(10) = 55}}[/tex]

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