jpd5184

i thought it was right to but its not the right answer. maybe it needs simplified. dont know

you are right with everything you said. do i have to use the chain rule. i thought that because ddx arctan(x) = 1/x^2 + 1 that i could just substitute that in. so if i use chain rule then it would be (1/2(29arctan(x))^-1/2) (29/x^2 + 1)

the question is find the derivative of y=sqrt.(29arctan(x)) what i did was change it to make it y= (29arctan(x))^1/2 since ddx arctan = 1/1+x^2, I said the answer was (29/sqrt.(1+x^2)^1/2