Estimating a Limit Consider the function x + 1| - |x – 1| f(x) = Estimate |x + 1| – |x – 1| lim - x→0 by evaluatingf at x-values near 0. Sketch the graph of f.
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- lim_(x→-inf)((1-2x)/3x) Find the limit and show prooflim x2-4x/x2-16 (Guess value of limit) x-->4Definition of infinite limit: Let X⊆ R, f: X -> R and a∈ X'. If for every M>0 there exists delta > 0 such that |f(x)| > M whenever x∈X and 0< |x-a| < delta then we say that the limit as x approaches a of f(x) is ∞ which is denoted as lim {x-> a} f(x) = ∞. Suppose a∈R, ∈>0, and f,g : N*(a,∈) ->R. If lim {x-> a} f(x) = L>0 and lim {x-> a} g(x)= ∞, prove lim {x-> a} (fg)(x)=∞.