SOLUTION: If y(x) = ln(secx + tanx), determine the third derivative of y(x), i.e., find d^3y/dx^3.

SOLUTION: If y(x) = ln(secx + tanx), determine the third derivative of y(x), i.e., find d^3y/dx^3.

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Question 1200825: If y(x) = ln(secx + tanx), determine the third derivative of y(x), i.e., find d^3y/dx^3.
Answer by Edwin McCravy(20054) (Show Source): You can put this solution on YOUR website!



Use the formulas: , 
  ,
and 

we have:


















Use formula  as 







Edwin

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