If a and b are two real numbers such that ##a^3-3a^2+5a=1## and ##b^3-3b^2+5b=5##, evaluate a + b.
I tried that first came nowhere, perhaps i made some arthimetic errorSubtract polynomials.
Maybe very gifted high school students...Isn't this supposed to be for secondary-and-high-school-students?
Maybe, but I think most of the posters here have a good few years education beyond high school.Maybe very gifted high school students...
I do, and I couldn't get it. Anyhow, at least everyone has hidden the replies. Also, you get rusty if you don't use it. If I could have solved it in a unique way, I would have posted a solution too.Maybe, but I think most of the posters here have a good few years education beyond high school.
Look at the last ~two years powt, 0 or 1 reply starting with "no one answered".I think that progress towards that goal is hindered by posting of solutions/hints by STEM graduates and higher within hours of posting the problem.
I interpret these questions as being appropriate for a certain level of education such as high school because that's what the students there have had but having more education usually means a broader scope but doesn't mean one can do that problem any easier beyond that level. Once you know trig you can attempt a tricky trig problem but knowing differential equations or just being older won't necessarily help you do that tricky trig problem.I think that progress towards that goal is hindered by posting of solutions/hints by STEM graduates and higher within hours of posting the problem.