Recent content by abrk

Hello I've got a problem with Cartesian Geometry and cannot find a solution. A will appretiate any help I can get. b) Show that $$[AQ]$$ has equation $$cx + by = -2ac$$ c) Prove that the third median $$[BR]$$ passes through the point of intersection $$G$$ of medians $$[OP]$$ and $$[AQ]$$...

I didn't even suspect that level of help and good will is possible nowadays. Thank you very very much.

For 1 and 2. Indeed, there was one more bracket, which I didn't embed in my original question. My whole problem is that I cannot get through the equation system $$a^2+b^2=c$$ $$a*b=d$$ Or in this case $$a^2+2b^2=33$$ and $$a*b=20$$ In 3, that's the whole description of the task, but a assume...

Hello. I've been trying to crack these three for half a day and decided to ask for help. 1) $$(a+b(\sqrt{2})^2=33+20(\sqrt{2})$$ 2) $$(a+b(\sqrt{2})^2=41-24(\sqrt{2})$$ 3) Find: $$ \sqrt{11-6\sqrt{2}}$$.