Trigonometric Functions & Equations

Section: Mathematics

Question : 10 of 30

Marks: +1, -0

Let f:ℝ→ℝ a differentiable function with f(O)=1 and satisfying the equation f(x+y)=f(x)f′(y)+f′(x)f(y) for all x,y∊ℝThen, then value of loge(f(4)) is ______.

[JEE Adv 2018 P2]

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