JEE Main 201815 Apr, Evening shiftMathematicsMediumThree Dimensional Geometry249× since 2002
An angle between the lines whose direction cosines are gien by the equations,
+ 3m + 5n = 0 and 5m 2mn + 6n = 0, is :
JEE Main 2018 · 15 Apr, Evening shift · Q2376