एक आयत के शीर्षों A,B,C और D जिनके स्थिति सदिश क्रमशः `-hati+1/2hatj+4hatk, hati+1/2hatj +4hatk, hati-1/2 hatj+4hatk ` और `-hati-1/2 hatj+4hatk` है का क्षेत्रफल है

Area of rectangle having vertices A, B , C and D with position vector (-hati + 1/2 hatj + 4hatk) , (hati + 1/2 hatj + 4hatk),(hati - 1/2 hatj + 4hatk) and (-hati - 1/2 hatj + 4hatk) is

Area of a rectangle having vertices : A(-hati+1/2 hatj+4hatk),B(hati+1/2hatj+4hatk),C(hati-1/2 hatj+4hatk),D(-hati-1/2hatj+4hatk) is :

Area of a rectangle having vertices A, B, C and D with position vectors : -hati + (1/2)hatj + 4hatk, hati + (1/2)hatj + 4hatk, hati - (1/2)hatj + 4hatk and -hati - (1/2)hatj + 4hatk , respectively is:

If a=3hati-2hatj+hatk,b=2hati-4hatj-3hatk and c=-hati+2hatj+2hatk , then a+b+c is

If a=3hati-2hatj+hatk,b=2hati-4hatj-3hatk and c=-hati+2hatj+2hatk , then a+b+c is

If a=3hati-2hatj+hatk,b=2hati-4hatj-3hatk and c=-hati+2hatj+2hatk , then a+b+c is

If a=3hati-2hatj+hatk,b=2hati-4hatj-3hatk and c=-hati+2hatj+2hatk , then a+b+c is

If a=3hati-2hatj+hatk,b=2hati-4hatj-3hatk and c=-hati+2hatj+2hatk , then a+b+c is