The condition for the lines `x = az + b, y = cz + d` and `x = a_(1) z + b_(1) y = c_(1) z + d_1` to be perpendicular

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Q 2116778670.     The condition for the lines `x = az + b, y = cz + d` and

`x = a_(1) z + b_(1) y = c_(1) z + d_1` to be perpendicular is
A

`ac_1 + a_(1)c = 1`

B

`aa_1 + cc_(1) + 1 =0 `

C

`bc_1 + b_(1)c + 1 =0 `

D

None of these

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Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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