A graphing calculator is recommended. Use the Squeeze Theorem to show that lim x → 0 (x2 cos 19πx) = 0. Illustrate by graphing the functions f(x) = −x2, g(x) = x2 cos 19πx, and h(x) = x2 on the same screen. Let f(x) = −x2, g(x) = x2 cos 19πx, and h(x) = x2. Then ≤ cos 19πx ≤ right double arrow implies ≤ x2 cos 19πx ≤ . Since lim x→0 f(x) = lim x→0 h(x) = , by the Squeeze Theorem we have lim x→0 g(x) = .

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.  

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step-by-step explanation: