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command help

Posted on 2008-07-25 22:23 By ptroubador (8)
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I want to use the differentiate function for this problem.

y=(x^3+3x+11)(x-1)^5,

and the other one I need help with is

Differentiate y=sqrt3x-1/x

Having difficulty in know how to enter problems in Maple.

Comments

alec's picture

Right mouse button

Comment on 2008-07-25 23:05 from alec (Maple Rating 4 1470)

In Standard Maple, that can be done by using context menu. Enter the function, move the mouse pointer over it and click the right mouse button, scroll down to Differentiate, and click on x. Don't enter y and =, just the expression of x. Also, don't forget to put a multiplication sign between two parentheses in the first example, and don't forget to add parentheses around (3x-1/x) in the second example (if it is the square root of that; if it is the square root of 3x, just add parentheses around 3x).

Alec

thanks.

Comment on 2008-07-26 00:42 from ptroubador (8)

The first example worked out fine. The second example of sqrt (3x-1)/x. When I work this out by hand, I get -2-3x/2x^2 times sqrt3x-1., where maple gave me Any suggestions where I made the error?

Another differentiate problem1/x+1+1/x-1, maple give me the answer of 1/(x+1)^2-1/(x-1)^2, though when I work it by hand i arrive at -2x^2-2/(x^2-1)^2. Can you point out which is correct, or if maple is correct or I am correct. Where did I go wrong checking my work with maple? I am fairly sure my work by hand is correct. Thoughts?

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