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[" Passage Based Problems "],[" Let "O" be the origin and OX,OY,OZ be three unit "],[" vectors in the directions of the sides QR,RP,PQ "],[" respectively,of a triangle PQR."]

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Let O be the origin and vec(OX) , vec(OY) , vec(OZ) be three unit vector in the directions of the sides vec(QR) , vec(RP),vec(PQ) respectively , of a triangle PQR. |vec(OX)xxvec(OY)|=

Let O be the origin and vec(OX) , vec(OY) , vec(OZ) be three unit vector in the directions of the sides vec(QR) , vec(RP),vec(PQ) respectively , of a triangle PQR. |vec(OX)xxvec(OY)|=

Let O be the origin and vec(OX) , vec(OY) , vec(OZ) be three unit vector in the directions of the sides vec(QR) , vec(RP),vec(PQ) respectively , of a triangle PQR. |vec(OX)xxvec(OY)|=

Let O be the origin and vec(OX) , vec(OY) , vec(OZ) be three unit vector in the directions of the sides vec(QR) , vec(RP),vec(PQ) respectively , of a triangle PQR. |vec(OX)xxvec(OY)|=

Let O be the origin, and vector OX,OY,OZ be three unit vectors in the directions of the sides vectors QR,RP, PQ respectively, of a triangle PQR. Vector |vec(OX)=vec(OY)|= (A) sin2R (B) sin(P+R) (C) sin(P+Q) (D) sin(Q+R)

Let O be the origin and vec(OX) , vec(OY) , vec(OZ) be three unit vector in the directions of the sides vec(QR) , vec(RP),vec(PQ) respectively , of a triangle PQR. if the triangle PQR varies , then the manimum value of cos (P+Q) + cos(Q+R)+ cos (R+P) is

Let O be the origin, and O X x O Y , O Z be three unit vectors in the direction of the sides Q R , R P , P Q , respectively of a triangle PQR. If the triangle PQR varies, then the minimum value of cos(P+Q)+cos(Q+R)+cos(R+P) is: -3/2 (b) 5/3 (c) 3/2 (d) -5/3

Let O be the origin, and O X x O Y , O Z be three unit vectors in the direction of the sides Q R , R P , P Q , respectively of a triangle PQR. If the triangle PQR varies, then the minimum value of cos(P+Q)+cos(Q+R)+cos(R+P) is: -3/2 (b) 5/3 (c) 3/2 (d) -5/3

Let O be the origin, and O X x O Y , O Z be three unit vectors in the direction of the sides Q R , R P , P Q , respectively of a triangle PQR. If the triangle PQR varies, then the minimum value of cos(P+Q)+cos(Q+R)+cos(R+P) is: -3/2 (b) 5/3 (c) 3/2 (d) -5/3

Let O be the origin, and O X x O Y , O Z be three unit vectors in the direction of the sides Q R , R P , P Q , respectively of a triangle PQR. If the triangle PQR varies, then the minimum value of cos(P+Q)+cos(Q+R)+cos(R+P) is: -3/2 (b) 5/3 (c) 3/2 (d) -5/3