vec(P), vec(Q), vec(R), vec(S) are vector of equal magnitude. If vec(P) + vec(Q) -vec(R) = 0 angle between vec(P) and vec(Q) is theta_(1). If vec(P) + vec(Q) - vec(S) = 0 angle between vec(P) and vec(S) is theta_(2). The ratio of theta_(1) to theta_(2) is

vec(P), vec(Q), vec(R), vec(S) are vector of equal magnitude. If vec(P

1.	vec(P), vec(Q), vec(R), vec(S) are vector of equal magnitude. If vec(P) + vec(Q) -vec(R) = 0 angle between vec(P) and vec(Q) is theta_(1). If vec(P) + vec(Q) - vec(S) = 0 angle between vec(P) and vec(S) is theta_(2). The ratio of theta_(1) to theta_(2) is
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