SOLUTION: THe derivate of tan^-1(lnx+(x^2+1)^1/2) Cheers in advance

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Question 396187: THe derivate of tan^-1(lnx+(x^2+1)^1/2)
Cheers in advance
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
We have y+=+tan%5E%28-1%29+%28ln+x+%2B+%28x%5E2+%2B+1%29%5E%281%2F2%29%29

Note that the derivative of arctan x is 1%2F%281%2Bx%5E2%29. Using this,

(note that we have to take the derivative of the inside due to the chain rule)