If the vectors, p =(a+1) i +a j +a k , q =a i +(a+1) j +a k and r =a i +a j +(a+1) k (a R) are coplanar and...

Question

If the vectors, p =(a+1) i +a j +a k , q =a i +(a+1) j +a k and r =a i +a j +(a+1) k (a R) are coplanar and 3( p q )^2- | r q |^2=0, then the value of is _____

Accepted Answer

1

JEE Main 2020 Mathematics question

Solution