Math Chapter Wise question with answer

Q01 If lines x - 5 2- y 1- z = 5λ + 2 5 -1 and x 2y +1 1- z = 1 4λ -3 are perpendicular to each other, then the value o... English · KVS PGT 2022 Q02 The lines x = ay + b; z = cy + d and x= a' y + b', z = c' y + d' are perpendicular if English · UKPSC Lecturer (Mains) 2020 UPPCS (Pre) 1996, 2000 UP TGT 2016 (08.03.2019) Q03 The direction cosines of the line which is perpendicular to the lines with direction ratios 1,–2, –2 and 0, 2, 1 ar... English · UKPSC Lecturer (Mains) 2020 Q04 The lines x + y – z = 5; 9x– 5y + z = 4 and 6x – 8y + 4z = 3; x+ 8y –6z+7 = 0 are English · UKPSC Lecturer (Mains) 2020 Q05 The acute angle between two lines, whose direction ratio are 2, 3, 6 and 1, 2, 2 is: English · UK SSSC LT 2020 Q06 The angle between the lines whose direction cosines are given by the equation 3 ℓ + m + 5n = 0 and 6mn –2n ℓ + 5 ℓ... English · UKPSC GIC 2018