- #1

- 71

- 0

y' of arcsecx is : (1/x * sqrt(x^2 - 1))

im looking for arcsec(sqrt(x))

So I get (1/(sqrt(x)sqrt(x-1)) * 1/2sqrt(x))

Thats not the answer in the book :(

Help please

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter gr3g1
- Start date

- #1

- 71

- 0

y' of arcsecx is : (1/x * sqrt(x^2 - 1))

im looking for arcsec(sqrt(x))

So I get (1/(sqrt(x)sqrt(x-1)) * 1/2sqrt(x))

Thats not the answer in the book :(

Help please

- #2

Physics Monkey

Science Advisor

Homework Helper

- 1,363

- 34

Your answer looks ok, what is the answer the book gives?

- #3

- 71

- 0

thanks for the reply!

The answer given is : 1 / (2x * sqrt(x-1))

The answer given is : 1 / (2x * sqrt(x-1))

- #4

Physics Monkey

Science Advisor

Homework Helper

- 1,363

- 34

Look closely, your answer is actually the same as the book's.

Edit: At least I think it is, unless I'm misinterpreting your answer.

Edit: At least I think it is, unless I'm misinterpreting your answer.

Last edited:

- #5

- 71

- 0

Hmmm, I dont see it.. and i substitued X by a number, and it gives me 2 different answers

- #6

Physics Monkey

Science Advisor

Homework Helper

- 1,363

- 34

Is your answer [tex] \frac{1}{\sqrt{x}\sqrt{x - 1}}\frac{1}{2 \sqrt{x}} [/tex] or something else?

- #7

- 71

- 0

ya, thats my answer

- #8

Physics Monkey

Science Advisor

Homework Helper

- 1,363

- 34

[tex] \frac{1}{\sqrt{x}\sqrt{x - 1}}\frac{1}{2 \sqrt{x}} = \frac{1}{2 x \sqrt{x - 1}}.[/tex]

- #9

- 71

- 0

Ahh!!!! Thanks so much!

Share: