1.

If the lines x = ay + b ,z = cy + d and x= a'z + b',y = c'z + d'' are perpendicular then ..........

Answer»

`"CC"' + a + a' = 0`
`"aa"' + c+c' =0`
`AB ' + BC' + 1 =0`
`"bb"' + ""cc"' + 1 =0`

Answer :B


Discussion

No Comment Found

Related InterviewSolutions