Prove that vectors (u ), (v)and (w) are coplanar if and only if vectors (u ), (v ) and (w )are linearly dependent

2. Originally Posted by spock101
Prove that vectors (u ), (v)and (w) are coplanar if and only if vectors (u ), (v ) and (w )are linearly dependent
Which direction of the 'if and only if' proof are you having trouble with?