Let be the origin and be three unit vectors in the directions of the sides

MATHEMATICS · Single correct · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

Let OO be the origin and OX,OY,OZOX, OY, OZ be three unit vectors in the directions of the sides, QR,RP,PQQR, RP, PQ respectively of a ΔPQR\Delta PQR . ∣OX⃗×OY⃗∣=|\vec{OX} \times \vec{OY}| = (1) sin⁡(P+Q)\sin(P+Q) (2) sin⁡(P+R)\sin(P+R) (3) sin⁡(Q+R)\sin(Q+R) (4) sin⁡2R\sin 2R

Related theory

Browse the problem library