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Let f(x+y2)=f(x)+f(y)2 for all real x and y. If f′(0) exists and equals to −1 and f(0)=1, then f′(2) is equal to |
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Answer» Let f(x+y2)=f(x)+f(y)2 for all real x and y. If f′(0) exists and equals to −1 and f(0)=1, then f′(2) is equal to |
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