How do you prove that sec(x)+tan(x)/cot(x)+cos(x)=sin(x)+ sin(x).tan^2(x)?

2 5/8 is the final answer! : )

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.  

x-3y=4

step-by-step e