CBSE Class 11-science Answered
find f(x)
Asked by | 19 Jul, 2008, 10:51: PM
Expert Answer
we are given af(x) + b f(1/x) = x+x/5 (1)
put x->1/x in above equation we will get
bf(x) + a f(1/x) = 1/x +1/ 5x (2)
multiply (1) by a and (2) by b and then subtract
we will get (a2+b2)f(x) = a(x+x/5) + b (1/x +1/ 5x)
or f(x) = ( a(x+x/5) + b (1/x +1/ 5x) ) / (a2+b2)
Answered by | 08 Sep, 2008, 06:46: PM
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