How to eliminate angle from equations.

[blueye89]

Hi there, I have to eliminate angle φ from equations:

And transform to the equation of circle:

Please help.

 

[Deleted member 4993]

Hi there, I have to eliminate angle φ from equations:

And transform to the equation of circle:

Please help.

Are you sure you have posted the correct equations? Please check!!

And

You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL:

http://www.freemathhelp.com/forum/th...217#post322217

We can help - we only help after you have shown your work - or ask a specific question (not a statement like "Don't know any of these")

Please share your work with us indicating exactly where you are stuck - so that we may know where to begin to help you.

 

[tkhunny]

Have you considered squaring Y.

While you're at it, you could subtract 15/2 from X and then square the result.

See where that leads.

 

[Deleted member 4993]

Hi there, I have to eliminate angle φ from equations: (1) & (2)

And transform to the equation of circle: (3)

Please help.

You have not responded to my post.

The two equations can be transformed into the third - if one of the "+" in (1) or (2) is converted to "-".