1.

Let veca=hati+hatj+hatk, vecb=-hati+hatj+hatk, vecc=hati-hatj+hatk and vecd=hati+hatj-hatk. Then, the line of intersection ofplanes one determined by veca, vecb and other determined by vecc, vecd is perpendicular to

Answer»

`x`-axis
y-axis
z-axis
none of these

Solution :Required LINE is PARALLEL to the vector
`(VECA xx vecb)xx (vecc xx vecd)`
`[veca vec C vecd]vecb-[vecb vecc vecd]vecd`
`=4vecb-veca=-8hati`
Which is perpendicular to y-axis and z-axis.


Discussion

No Comment Found

Related InterviewSolutions