AP EAPCET 16th May 2023 Shift 2 Solved Paper

Section: Mathematics

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Question : 2 of 160

Marks: +1, -0

If f:ℝ→ℝ is defined by f(x+y)=f(x)+f(y)‌∀x,y∈ℝ and f(1)=7, then

n

∑

r=1

f(r)=

‌
3n(n+2)
4
‌
n(n−1)
2
‌
7n(n+1)
2
‌
(n+1)(n+2)
4

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