Power Rule Question: Why Did 1-2x Become 2x-1?

  • Thread starter Thread starter fitz_calc
  • Start date Start date
  • Tags Tags
    Power Power rule
fitz_calc
Messages
41
Reaction score
0
I just did a problem that made use of the power rule. Here is the final step:

(1-2x)
-------------
-(x-x^2)^5/4

=

(2x-1)
-------------
-(x-x^2)^5/4


Why did 1-2x become 2x-1 (2x-1 is the answer according to my book)??
 
Physics news on Phys.org
Are you sure there's a minus sign in both denominators?
 
yep I'm looking at the solution manual right now...
 
Well, that can't be right. :wink: (I suspect a typo.)
 

Thread 'Finding the nth roots of a complex number'

There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
View full post »

Similar threads

Solve the given problem involving integration
Replies
6
Views
2K
Differentiate the given integral
Replies
15
Views
2K
At what ##x## value is the tangent equally inclined to the given curve?
Replies
5
Views
773
Calculating Area Under a Curve Using Change of Variables and Quotient Rule
Replies
5
Views
2K
Solve the given differential equation
Replies
10
Views
2K
Question on Two Differentiation Techniques
Replies
25
Views
2K
How should I calculate the stationary value of ## S[y] ##?
Replies
2
Views
1K
Solve the inequality problem that involves modulus
Replies
4
Views
1K
Can this function still be a constant function?
Replies
11
Views
1K
Verify Green's Theorem in the given problem
Replies
10
Views
2K

Hot Threads

Recent Insights

Back
Top