If a, b are non-zero vectors such that |...

If a, b are non-zero vectors such that `|a+b|=|a-2b|`, then
Statement-I Least value of `ab+(4)/(|b|^(2)+2)` is `2sqrt(2)-1`.
Statement-II The expression `ab+(4)/(|b|^(2)+2)` is least when magnitude of b is `sqrt(2tan((pi)/(8)))`.

If a, b are non-zero vectors such that `|a+b|=|a-2b|`, then Statement-I Least value of `a*b+(4)/(|b|^(2)+2)` is `2sqrt(2)-1`. Statement-II The expression `a*b+(4)/(|b|^(2)+2)` is least when magnitude of b is `sqrt(2tan((pi)/(8)))`.