Question: I need help with all problems please Find the derivative of the function. y = 7 tan-1(x - V 1 +x2) 7 1+ 2x 1+x
I need help with all problems please

Find the derivative of the function. y = 7 tan-1(x - V 1 +x2) 7 1+ 2x 1+x (1+x2) 2 Enhanced Feedback Please try again using the Chain Rule and the differentiation formula @(tan () - 2 Submit Answer 7. [-/1 Points] DETAILS MY NOTES SCALC8 6.6.045. Find the limit, if it exists. (If an answer does not exist, enter DNE.) lim arctan(e) Submit Answer 8. [-/1 Points] DETAILS MY NOTES SCALC8 6.6.062. Evaluate the integral. V3/5 dx Jo 1 + 25x2 Submit Answer 9. [-/1 Points] DETAILS MY NOTES SCALC8 6.6.064. Evaluate the integral. sin 6x 1 + cos
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