V scalar w /|v| ×| w |= |v| ×| w | cos ß / |v| ×|w| = cos ß
so you should find some kind of relationship between those vector in order to get ß = π -60° / π + 60°
Thats all i can think of.
Homework Statement
Demonstrate lim inf an × lim inf bn ≤ lim inf (an × bn)
Homework EquationsThe Attempt at a Solution
Fixxed n € N , n≤ k , inf ak ≤ ak , inf bk≤ bk =》inf ak × inf bk ≤ (ak × bk) . Being inf ak × inf bk ≤ any element from {ak} × {bk} it`s logical that inf ( ak × bk ) ≥ inf...
It's my first time in forums like this so I am kinda excited.My name is enrico and
im a first year physics italian student and i really enjoy it so far even tho it' getting real hard here.
Looking forward to help and to receive help! ;)