1
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

If $$k\int\limits_0^1 {x\,.\,f(3x)dx = \int\limits_0^3 {t\,.\,f(t)dt} } $$, then the value of $$k$$ is

A
3
B
9
C
1/3
D
1/9
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