" cos(x^2+5x+9)

round answer to 4 decimal places. "

Thanks!

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- May 8th 2012, 03:38 PMjonathanraxacosine problem
" cos(x^2+5x+9)

round answer to 4 decimal places. "

Thanks! - May 8th 2012, 04:14 PMskeeterRe: cosine problem
- May 8th 2012, 04:27 PMjonathanraxaRe: cosine problem
- May 8th 2012, 05:21 PMskeeterRe: cosine problem
- May 8th 2012, 05:23 PMjonathanraxaRe: cosine problem
- May 8th 2012, 05:31 PMPlatoRe: cosine problem
- May 8th 2012, 05:31 PMskeeterRe: cosine problem
if ...

$\displaystyle \cos(x^2+5x+9) = 0$

then ...

$\displaystyle x^2 + 5x + 9 = \frac{(2k+1)\pi}{2}$

$\displaystyle k \in \mathbb{Z}$ - May 8th 2012, 09:28 PMjonathanraxaRe: cosine problem
Another thing I forgot to mention was that I'm trying to find the smallest positive number 'x' from this equation. I don't know if this helps in any way

- May 9th 2012, 03:20 AMskeeterRe: cosine problem