Let a = I + j, b = 2i - k. Then the point of intersection of the lines `r xx a = b xx a` and `r xx b = a xx b` is

The point of intersection of the lines r times a=b times a, r times b=a times b is

Let a-i+j and b=2i-k .The point of intersection of the lines r times a=b times a and r times b=a times b is

Let vec(a)= vec(i) + vec(j), vec(b)= 2vec(i) -vec(k) . Then the point of intersection of the lines vec(r ) xx vec(a) = vec(b) xx vec(a) and vec(r ) xx vec(b)= vec(a) xx vec(b) is

If bar = hat i + hat j and bar b = 2 hat i - hat k then the intersection piont of the lines bar r xx bar a = bar b xx bar a and bar r xx bar b = bar a xx bar b is .............

If a = I + j + k, b = 2i - 3j + k then a xx b is