Question

Vector P - Vector Q = Vector R and P=Q=R then find the ratio of angles between Vector P&R to Vector P&Q

Answer 1

Answer:

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Explanation:

(R)=root(p^2+q^2-2pqcos)

P^2=P^2+P^2-2P^2COS........................(GIVEN P=Q=R)

THEN,P^2=2P^2-2P^2COS

-P^2=(-2P^2COS)

-1/2=COS

THEN ANGLE BW p and q is 120...