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.
Then we know that
Put the second equation in:
Now start from x + y = a and y = mx.
Put this into the equation to cancel the x and you are done.