I'm trying to figure out how to get from point A to point B here. What are the steps in between? Thanks in advance! Liz

Point A:

Point B:

I'm trying to figure out how to get from point A to point B here. What are the steps in between? Thanks in advance! Liz

Point A:

Point B:

Point A:

Point B:

- maggiemagnet
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I edited inside the quote to show what I think you meant in the 1st post. Did I get it right? If I messed up, please write back with corrections. Either way please write back showing what you did so far. Thanks!I'm trying to figure out how to get from point A to point B here. What are the steps in between? Thanks in advance! Liz

Point A:

Point B:

Yes, that is what I meant. Sorry I do not know LaTex very well.

I can't even figure out how to get started. Can you give me a hint what would be Step 1?

Thanks, Liz

I can't even figure out how to get started. Can you give me a hint what would be Step 1?

Thanks, Liz

When you have fractions, it can help to see what happens if you try to go to common denominators:Point A:

Point B:

Yes, that is what I meant....

I can't even figure out how to get started. Can you give me a hint what would be Step 1?

OK this doesn't look like it's really working, so try something else. Maybe let's do rationalizing the denominators:

This doesn't look right either. Maybe let's try going backwards from Point B:

If we factor now we get close to Point A:

But I don't see how this can go all the way back to Point A because that would mean that a = 1 and we don't have anything that says that. So maybe this isn't right in the first place? Try checking:

So maybe that's the problem: they're not actually equal.

Thank you very much. This helps tremendously.

The problem came up as part of the derivation of an equation in physics. I could not figure out how they got Point B from Point A. I see now later in the text that they say a must be either 1 or -1.

Thanks,

Liz

The problem came up as part of the derivation of an equation in physics. I could not figure out how they got Point B from Point A. I see now later in the text that they say a must be either 1 or -1.

Thanks,

Liz