\(Plot[\((x^2 - 4)\)^2\  - \ 8, \ {x, \(-3\), 3}, 
      PlotRange -> {\(-8\), 8}, 
AspectRatio -> 1]\)

\(p1\  = \ 
      Plot[\(-Sqrt[4\  + \ Sqrt[x + 8]]\), \ {x, \(-8\), 8}, 
	
        PlotRange -> {{\(-8\), 8}, {\(-3\), 3}}, AspectRatio -> 1]\)

\(p2\  = \ 
      Plot[\(-Sqrt[4\  - \ Sqrt[x + 8]]\), \ {x, \(-8\), 8}, 
	
        PlotRange -> {{\(-8\), 8}, {\(-3\), 3}}, AspectRatio -> 1]\)

\(p3 = \ 
      Plot[Sqrt[4\  - \ Sqrt[x + 8]], \ {x, \(-8\), 8}, 
	
        PlotRange -> {{\(-8\), 8}, {\(-3\), 3}}, AspectRatio -> 1]\)

\(p4 = \ 
      Plot[Sqrt[4\  + \ Sqrt[x + 8]], \ {x, \(-8\), 8}, 
	
        PlotRange -> {{\(-8\), 8}, {\(-3\), 3}}, AspectRatio -> 1]\)

\(s1\  = \ Plot[Sin[x], \ {x, \(-Pi\)/2, Pi/2}, 
	AspectRatio -> 1]\)

\(s2\  = \ Plot[ArcSin[x], \ {x, \(-1\), 1}, 
	AspectRatio -> 1]\)

\(Plot[Tan[x], \ {x, \(-Pi\)/2, Pi/2}, \ PlotRange -> {\(-8\), 8}, 
	
      AspectRatio -> 2]\)

\(Plot[ArcTan[x], \ {x, \(-8\), 8}, \ PlotRange -> {\(-Pi\)/2, Pi/2}, 
	
      AspectRatio -> 1/2]\)

\(Plot[Cos[x], \ {x, 0, Pi}, 
AspectRatio -> 1]\)

\(Plot[ArcCos[x], {x, \(-1\), 1}, 
AspectRatio -> 1]\)