I'm guessing the first term should be 1/x rather than another 1/y?
Solve the second for x and substitute this expression into the other two equations. You'll be nearly done.
Hi there I have a problem that I am trying to figure out. It said that by eliminating and from the equations , , where . obtain a relation between adn . Given that a is real, determine the ranges of values of for which is real. Can some one help me with this problem. Thank you in advance.
Perhaps this is a bit sloppy (but then I tend to make problems a bit rougher than they need to be.) Start with the two equaitons:
and
Then we know that
Put the second equation in:
or
Now start from x + y = a and y = mx.
giving
Put this into the equation to cancel the x and you are done.
-Dan