The position vector of a point P is r=x i+y j+z k, where x N , y N , z N and a= i+ j+ k. If r a=10, the...

Question

The position vector of a point P is r=x i+y j+z k, where x N , y N , z N and a= i+ j+ k. If r a=10, the number of possible positions of P is

Accepted Answer

(A)

JEE Advanced Mathematics question