Q17Long answer
Show that area of the parallelogram whose diagonals are given by a and b is a ×b . Also find the area of the parallelogram whose diagonals are 2iˆ − ˆj + kˆ and iˆ + 3 ˆj − kˆ .
Show that area of the parallelogram whose diagonals are given by a and b is a ×b . Also find the area of the parallelogram whose diagonals are 2iˆ − ˆj + kˆ and iˆ + 3 ˆj − kˆ .