Math Chapter Wise The Plane And The Line (Cartesian And Vector) English MCQ Rajasthan TGT 2016 Q.The angle between the planes given by combined equation 6x2 +4y2 –10z2 +3yz+4zx–11xy=0 is equal to A1 2 cos 3 − B2/π C3/π D1 1 cos 6 − Show answer Correct answer: 2/π