Question

P1 and P2 are two position vectors making angle theta 1 and theta 2 with positive x. axis respectively. Find their vector product when P1=12cm and P2= 9cm and theta 1= 30° and theta 2=90°(where sin 60= 0.866)

Answer 1

p1=12 and p2=9

angle=90-30=60

vector product=12.24.sin60

=352.8

Answer 2

I think it may help.............