3 years ago

A student simplified -(2-n) to the expression n-2. Did the student simplify correctly? Why or why not?

Mathematics

1 answer:

Vitek1552 [10]3 years ago

5 0

Yes bc when I simplified it I got -2+n but that's just written a different way

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lesantik [10]

Answer:

aₙ = aₙ₋₁ + n + 1

Step-by-step explanation:

a₁ = 2

a₂ = 2 + 2 + 1 = 5

a₃ = 5 + 3 + 1 = 9

a₄ = 9 + 4 + 1 = 14

a₅ = 14 + 5 + 1 = 20

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