|Jun20-06, 11:55 PM||#1|
A simple question?!
I am a new member to this forum.I am from INDIA and studying in grade 12.
I was struck in a question and need help.Hope someone could solve it.
The question is to solve these simultaneous equations:-
√x + y = a -------- (i)
x +√y = b ---------- (ii)
I have a few hints such as making a change in variable by introducing
x = m^2 and y= n^2 and then doing some algebraic manipulations to get
But I dunno know what to do next. Plz help.
|Jun21-06, 07:16 AM||#2|
|Jul6-06, 08:45 PM||#3|
I'd simply...use a substitution after working around w/ them
x=a^2 - 2ay + y^2
y=b^2 -2bx + x^2
And now...stick the x into the y=
y=B^2 -2b(a^2 - 2ay + y^2) + (a^2 - 2ay + y^2)^2
And algebrate. it's ugly but you can't dodge the forth power I don't think. SUbstitute y from both sides and you'll have the =0
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