Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Respecte a una BASE ORTONORMAL, les coordenades de dos vectors són [u with rightwards arrow on top equals # u] i [v with rightwards arrow on top equals # v]. Calcula: a) [u with rightwards arrow on top times v with rightwards arrow on top equals]_____ b) [open vertical bar u with rightwards arrow on top close vertical bar equals]_____ (escriu ^(1/2) per expressar l'arrel quadrada) [open vertical bar v with rightwards arrow on top close vertical bar equals]_____ (escriu ^(1/2) per expressar l'arrel quadrada) c) Quant ha de valer x per tal que [w with rightwards arrow on top]=[-7,x,-1] sigui perpendicular a [u with rightwards arrow on top]? x=_____
Right answer summary: part 1: -71; part 2: 123^(1/2); part 3: 7; part 4: 56/5
Question state: todo