" (ग) द्रात्र कि बिन्दु "2hat i,-hat i-4hat jmath,-hat i+4hat j" एक समकिबाहु त्रिभुज बनाते है। "

Show that the point 2hat i,-hat i-4hat j and -hat i+4hat j from an isosceles triangle.

A point on the line hat r=2hat i+3hat j+4hat k+t(hat i+hat j+hat k) is

A point on the line vec r=2hat i+3hat j+4hat k+t(hat i+hat j+hat k) is

Show that the point 2 hat i ,- hat i-4 hat j and - hat i+4 hat j from an isosceles triangle.

Show that the point 2 hat i ,- hat i-4 hat j and - hat i+4 hat j from an isosceles triangle.

Find the angle between the vectors 2 hat i -hat j+ hat k and 3 hat i +4hat j - hat k

find the projection of 3hat i - hat j + 4hat k on 2 hat i + 3 hat j -6 hat k

Show that the points whose position vectors are as given below are collinear: 2 hat i+ hat j- hat k ,\ 3 hat i-2 hat j+ hat k\ a n d\ hat i+4 hat j-3 hat k 3 hat i-2 hat j+4 hat k ,\ hat i+ hat j+ hat k\ a n d-\ hat i+4 hat j-2 hat k

Show that the points whose position vectors are as given below are collinear: 2hat i+hat j-hat k,3hat i-2hat j+hat k and hat i+4hat j-3hat k3hat i-2hat j+4hat k,hat i+hat j+hat k and -hat i+4hat j-2hat k