Question

Show that there is no positive integer n, for which vn - 1 + - 1 is rational.​

Answer 1

Answer:

1. -1+ -1 =-1 - 1 = -2

Explanation:

because when minus is added,it becomes negative.

to understand remember the song

same signs keep and add

different signs subtract

take the sign of bigger number

then you will be exact.