[" BC "1.],[" 16.Show that the points "A(1,2,7),B(2,6,3)" and "C(3,10,-1)" are collineat "],[" aremunt the vectors "2i-j+k,i-3hat j-5k" and "3i-4j-4i" form the "]

Show that the points A(-2i+3j+5k),B(i+2j+3k) and C(7i-k) are collinear.

Show that the points A(-2hat i+3hat j+5hat k),B(hat i+2hat j+3hat k) and C(7hat i-hat k) are collinear.

The three points whose position vectors are i+2j+3k, 3i+4j+7k, and -3i-2j-5k

Show that the points A,B and C having position vectors (i+2j+7k),(2i+6j+3k) and (3i+10j-k) respectively,are collinear.

Show that the points A,B and C with position vectors,vec a=3hat i-4hat j-4hat kvec b=2hat i-hat j+hat k and vec c=hat i-3hat j-5hat k respectively form the vertices of a right angled triangle.

Show that the points A(-2 hat i+3 hat j+5 hat k), B( hat i+2 hat j+3 hat k) and C(7 hat i-3 hat k) are collinear.

The vectors 3i-2j+k,i-3j+5k and 2i+j-4k form the sides of a triangle.This triangle is