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Functions question

2023 · 24 Jan · Shift 2 · Q23

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PYQ Library
JEE Main
Mathematics
Functions
2023 · 24 Jan · Shift 2 · Q23

Functions question

2023 · 24 Jan · Shift 2 · Q23

JEE MainMathematicsFunctionsMCQ+4 / −1

Let

f(x)

be a function such that

f(x+y)=f(x).f(y)

for all

x,y\in \mathbb{N}

. If

f(1)=3

and

\sum\limits_{k = 1}^n {f(k) = 3279}

, then the value of n is

A
9
B
7
C
6
D
8

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