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If f(x+y) + f(xy) =2f(x)f(y) and f(0)=k then find f(x)?by succhi
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#1
May3008, 01:34 AM

P: 4

if
f(x+y) + f(xy) =2f(x)f(y) and f(0)=k then find f(x)? What should be approach followed to solve this question . plz ans it soon 


#2
May3008, 03:18 AM

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P: 4,300

You have an expression with f(x) and f(y) and you only want f(x). So you have to get rid of y.
One more hint: that identity holds for all values of y. 


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