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1. how do i differentiate x^7 with respect to x? i've not been taught this and cannot find useful information online.
2. Being the power down and then subtract 1 from the power.

So 7x^6

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3. (Original post by caitlindavies)
how do i differentiate x^7 with respect to x? i've not been taught this and cannot find useful information online.
step 1: multiply the X by 7

Step 2: minus 1 away from the power

4. (Original post by caitlindavies)
how do i differentiate x^7 with respect to x? i've not been taught this and cannot find useful information online.
x^n differentiates into nx^(n-1)
So it would be 7x^6.
5. http://www.dummies.com/how-to/conten...ion-rules.html

so f(x) = x^7
f'(x) = 7x^6
6. thanks everyone! as soon as i posted it clicked, what do i do if it says 7x^2?
7. (Original post by york_wbu)
x^n differentiates into nx^(n-1)
So it would be 7x^6.
(Original post by Bloom77)
step 1: multiply the X by 7

Step 2: minus 1 away from the power

(Original post by AmateurMathsGeek)
Being the power down and then subtract 1 from the power.

So 7x^6

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That's incorrect
8. (Original post by AK 12)
That's incorrect
sorry, what i mean is what if the question asks x^4 + 7x^2
would it be 4x^3 + 14x?
9. Differentiating (x)^7 wrtx is solvable using chain rule.

d/dx[(x)^7] = [7x^6] * 1. You always multiply by the devrivate of the bracket. d/dx[(x^3)^7] = 7x^18*3x^2
10. (Original post by AK 12)
Differentiating (x)^7 wrtx is solvable using chain rule.

d/dx[(x)^7] = [7x^6] * 1. You always multiply by the devrivate of the bracket. d/dx[(x^3)^7] = 7x^18*3x^2
Why are you posting about the chain rule?
11. (Original post by AK 12)
Differentiating (x)^7 wrtx is solvable using chain rule.

d/dx[(x)^7] = [7x^6] * 1. You always multiply by the devrivate of the bracket. d/dx[(x^3)^7] = 7x^18*3x^2

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12. (Original post by AK 12)
Differentiating (x)^7 wrtx is solvable using chain rule.

d/dx[(x)^7] = [7x^6] * 1. You always multiply by the devrivate of the bracket. d/dx[(x^3)^7] = 7x^18*3x^2
Please don't troll people who are trying to give constructive suggestions!

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