Question

If a, b and c are three non-coplanar unit vectors such that the angle between every pair of them is π/3. If a × b + b × c = pa + qb + rc, where p, q and r are scalears, find the value of ((p² + 2q² + r²)/q²) is...

Answer 1

Given, a × b + b × c = pa + qb + rc

Also,

From Eqs (i), (ii) and (iii), 

we get

q = r = – q