" (viii) "lim_(x rarr a)(sqrt(x-b)-sqrt(a-b))/(x^(2)-a^(2))

lim_(x rarr oo)(sqrt(x-a)-sqrt(x-b))

The value of lim_(x rarr a)(sqrt(x-b)-sqrt(a-b))/(x^(2)-a^(2))

lim_(x rarr a)((sqrt(x)-sqrt(a))/(x-a))

lim_(x rarr a)(sqrt(x)+sqrt(a))/(x+a)

lim_(x rarr a)(sqrt(x)+sqrt(a))/(x+a)

lim_(x rarr a)(sqrt(x)+sqrt(a))/(x+a)

lim_(x rarr a)(x-a)/(sqrt(x)-sqrt(a))

If Lim_(x rarr a) (sqrt(x-b)-sqrt(a-b))/(x^(2)-a^(2))(a gt b) = 1/64 and Lim_(x rarr oo) (sqrt(x^(2)+ax)-sqrt(x^(2)+bx)) = 2 then the value of a/b, is