The position vector of the centroid of the triangle formed by the points i + j + k, i - j + k, -i + j + k is

The incentre of the triangle formed by the points i+j+k,4i+j+k,4i+5j+k is

Write the position vector of the centroid of the triangle formed by the points whose position vectors are 3bar(i)+2bar(j)-bar(k), 2bar(i)-2bar(j)+5bar(k), bar(i)+3bar(j)-bar(k) .

If the position vectors of the vertices of a triangle are 2i - j + k, i - 3j - 5k, 3i - 4j - 4k then it is

Find the position vector of the centroid of the tetrahedron formed by the points 2bar(i)-bar(j)-3bar(k), 4bar(i)+bar(j)+3bar(k), 3bar(i)+2bar(j)-bar(k), bar(i)+4bar(j)+2bar(k) .

The area of the triangle formed by the points whose position vectors are 3i + j 5i + 2j + k, I - 2j + 3k is

The positon vector of the centroid of the triangle ABC is 2i+4j+2k . If the position vector of the vector A is 2i+6j+4k., then the position vector of midpointof BC is (A) 2i+3j+k (B) 2i+3jk (C) 2i-3j-k (D) -2i-3j-k

The positon vector of the centroid of the triangle ABC is 2i+4j+2k . If the position vector of the vector A is 2i+6j+4k., then the position vector of midpointof BC is (A) 2i+3j+k (B) 2i+3jk (C) 2i-3j-k (D) -2i-3j-k

The volume of the tetrahedron formed by 4i + 5j + k, - j + k, 3i + 9j + 4k, 4 (-I + j + k) is