1.

Let f(x)-=(x^(2) +bx+c)/(x^(2)+b_(1)+c_(1)) where alpha,beta are the roots of the equation x^(2)+bx+c=0andalpha_(1),beta are the roots of x^(2)+b_(1)x+c_(1)=0 Now answer the following questions for f(x) A combination of graphical and analytical approach may be helpful in solving these problems If alpha_(1)andbeta_(1) are real then f(x)has vertical asymptote at x=alpha_(1),beta_(1). If alpha_(1)ltalphaltbeta _(1)ltbeta then

Answer»

f(x) is INCREASING in `(alpha_(1),beta_(1))`
f(x) is DECREASING in `(alpha,beta)`
f(x) is decreasing in `(beta_(1),beta)`

ANSWER :A


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