Why not learn to post in symbols? You can use LaTeX tags
[tex]x^{-2}+y^{10}[/tex] gives
[tex]ab+cd<1[/tex] gives
Note that
Hi my first post! Feel embarrassed I cant see the solution as I though I was getting quite good at these.... Any here is the question:
If a2 + b2 = 1 = c2 + d2 ; a, b, c, d are elements of R
Prove that ab + cd < 1
Apologies I cant seem to use superscript; the number 2 in the question is meant to be to the power of 2 for each of the letters in the equation.
Why not learn to post in symbols? You can use LaTeX tags
[tex]x^{-2}+y^{10}[/tex] gives
[tex]ab+cd<1[/tex] gives
Note that