Find the projection of b+ con awhere a=2i^− 2j^+ k^, b= i^+ 2j^− 2k^and c=2i^− j^+ 4k^
Area of a rectangle having vertices A, B, C and D with position vectors −i^+21j^+4k^,i^+21j^+4k^,i^−21j^+4k^ and −i^−21j^+4k^ respectively is
(A) 1/2 (B) 1 (C) 2 (D) 4
Find the scalar and vector components of the vector with initial point (2, 1) and terminal point (5,7).
If a=2i^+2j^+3k^,b=−i^+2j^+k^ and c=3i^+j^ are such that a+λbis perpendicular to c, then find the value of λ.