Expression 1: "f" left parenthesis, "x" , right parenthesis equals sine left parenthesis, "x" plus "e" to the 4th power , right parenthesis Has graph. To audio trace, press ALT+T.fx=sinx+e4
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Expression 2: "f" prime left parenthesis, "x" , right parenthesis Has graph. To audio trace, press ALT+T.f′x