2006-09-11 17:09:40 · 6 answers · asked by michael m 2 in Science & Mathematics ➔ Mathematics
its 2/(45*x^3)
2006-09-11 17:17:25 · answer #1 · answered by Anonymous · 0⤊ 0⤋
This is simply the power rule. In any case involving a derivative that you have one vairable raised to a power, simply multiply its coefficient by the power, then reduce the power by one.
(2)*(-1/45)x^(2-1)=
-2/45x
Be weary of the other answers that are confusin their rules with integration rules. When you get to integration there will be a similar rule, but it does the opposite effect. Dan and banjuja are correct here, the others are confusing their rules.
2006-09-12 00:14:39 · answer #2 · answered by tplanningstages 1 · 0⤊ 0⤋
if its derivative of -1/(45*x^2) then the answer is 2/(45*x^3)
if its derivative of (-1/45)*x^2 then the answer is -(2/45)*x
2006-09-12 01:10:54 · answer #3 · answered by saby 2 · 0⤊ 0⤋
let y= -1/45x^2, then
-1/45 x^ -2, so dy.dx=2/45x^3
2006-09-12 00:12:01 · answer #4 · answered by free aung san su kyi forthwith 2 · 0⤊ 1⤋
-2/45x if memory serves...you really need to talk to your math teacher if something this simple gives you trouble..
2006-09-12 00:11:39 · answer #5 · answered by dan 4 · 0⤊ 0⤋
derivative 0f ax^b is bax^(b-1).
2006-09-12 00:13:08 · answer #6 · answered by banjuja58 4 · 0⤊ 0⤋