Math Chapter Wise question with answer

Q01 The angle between the lines 2x = 3y = -z and 6x = -y = -4z is: English · EMRS PGT-2023 Q02 The angle between the two lines x 2 y 1 z 3 2 7 3 − + − + = − − and x 2 2y 8 z 5 1 4 4 + − − = − is: English · KVS PGT 2023 Q03 The angle between the lines whose direction cosines satisfy the equations l + m + n = 0 and 2lm + 2nl – mn = 0 is – English · UP PGT 2021 UPPCS (Pre) 2002 Q04 The acute angle between two lines, whose direction ratio are 2, 3, 6 and 1, 2, 2 is: English · UK SSSC LT 2020 Q05 If 1 1 1,m,n l and 2 2 2,m,n l are direction cosines of the two lines inclined to each other at an angle θ, then th... English · Rajasthan TGT 2013 Q06 If (l1, m1, n1), (l 2, m2, n2) are direction cosines of two lines and θ is the angle between them, then cosθ= English · Jharkhand TGT 2017