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  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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Topic review (newest first)

bobbym
2012-09-07 07:21:56

The tangent problem? No I used geogebra to get the tangents for me. But when I look at the graph I am not so sure of the answer we are all getting.

Question: Are you satisfied with your tangent line?

Julieeeee
2012-09-07 07:19:35

did you also do it like me?

bobbym
2012-09-07 07:14:48

Hi;

Have you seen an implicit plot of that equation?

Yes, I get your answer when I do the integration.

Julieeeee
2012-09-07 07:08:22

bobbym wrote:

When I do it by hand I do not get Alpha's answer either.

Do you get my answer?

Julieeeee
2012-09-07 07:06:12

by implicit differentiation I get



Hence


Thank you bobbym

bobbym
2012-09-07 06:21:22

Hi Julieeeee;

I am getting that for a tangent also. How did you get yours?

For that integral, Maple gets the first answer too. Might be that an absolute value is wrapped around each term and they have both left it out...

When I do it by hand I do not get Alpha's answer either.

Julieeeee
2012-09-07 06:01:47

What about tangent touching graph of

at a point

I get


And also...

But wolfram alpha says

Why is that so?

bobbym
2012-09-07 02:16:11

Hi Julieeeee;

That is correct and nice and simple.

Julieeeee
2012-09-07 02:03:24

Thank you guys.
I did

bobbym
2012-09-07 01:44:35

Hi Julieeeee;

Welcome to the forum.

This is what I did:





What did you do?

TheDude
2012-09-07 01:43:26

That's the answer I get Julie.

Julieeeee
2012-09-07 01:36:49

Yes, I also got this picture

bobbym
2012-09-07 01:28:47

Hi Julieeeee;

Is the purple shaded area what you want?

Julieeeee
2012-09-07 01:01:46

I'd like to check my result. I have to find area between

axis. I got

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