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If f(x)+f(y)=f(x+y1−xy)∀ x,y∈R (xy≠1) and limx→0f(x)x=2, then the value of f′(1) is equal to |
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Answer» If f(x)+f(y)=f(x+y1−xy)∀ x,y∈R (xy≠1) and limx→0f(x)x=2, then the value of f′(1) is equal to |
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