If two side of a triangle are ` hat i+2 hat ja n d hat i+ hat k` , then find the length of the third side.

If two side of a triangle are hat i+2 hat j and hat i+ hat k , then find the length of the third side.

If two side of a triangle are hat i+2 hat j and hat i+ hat k , then find the length of the third side.

If two side of a triangle are hat i+2hat j and hat i+hat k then find the length of the third side.

The position vectors of the vertices A ,B ,a n dC of a triangle are hat i+ hat j , hat j+ hat ka n d hat i+ hat k , respectively. Find the unit vector hat r lying in the plane of A B C and perpendicular to I A ,w h e r eI is the incentre of the triangle.

The position vectors of the vertices A ,B ,a n dC of a triangle are hat i+ hat j , hat j+ hat ka n d hat i+ hat k , respectively. Find the unite vector hat r lying in the plane of A B C and perpendicular to I A ,w h e r eI is the incentre of the triangle.

The position vectors of the vertices A ,B ,a n dC of a triangle are hat i+ hat j , hat j+ hat ka n d hat i+ hat k , respectively. Find the unite vector hat r lying in the plane of A B C and perpendicular to I A ,w h e r eI is the incentre of the triangle.

If vec a=4 hat i+6 hat ja n d vec b=3 hat j+4 hat k , then find the component of vec aa n d vec bdot

Let hat u= hat i+ hat j , hat v= hat i- hat ja n d hat w= hat i+2 hat j+3 hat kdot If hat n is a unit vector such that hat udot hat n=0a n d hat vdot hat n=0, then find the value of | hat wdot hat n|dot