1.

Let f(x)=(a_(2k)x^(2k)+a_(2k-1)x^(2k-1)+...+a_(1)x+a_(0))/(b_(2k)x^(2k)+b_(2k-1)x^(2k-1)+...+b_(1)x+b_(0)),where k is a positive integer, a_(i), b_(i) in R " and " a_(2k) ne 0, b_(2k) ne 0 such that b_(2k)x^(2k)+b_(2k-1)x^(2k-1)+...+b_(1)x+b_(0)=0 has no real roots, then

Answer»

F(x) must be one to one
`a_(2K)x^(2k)+a_(2k-1)+...+a_(1)x+a_(0)=0`
must have REAL roots
f(x) must be many to one
Nothing can be said about the above options

Answer :C


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