Show that this is rational/irrational
Can someone give me an idea of where to start?
we know that sum / difference of two irrational numbers is irrational unless we are subtracting the same irrational number in which case the result will be 0. That should give you a beginning.
Ibdutt you are missing something?
let r1 be a rational number and r2 another rational then r1+π is irrational and r2-π is also irrational ..but (r1+π)+(r2-π) IS A RATIONAL AND NOT IRRATIONAL number !!!