Math miscellaneousHard

Question

The two lines x = ay + b, z = cy + d; and x = a′y + b′, z = c′y + d′ are perpendicular to each other if

Options

A.aa′ + cc′ = - 1
B.aa′ + cc′ = 1
C.
D.

Solution

Equation of lines

Lines are perpendicular ⇒ aa′ + 1 + cc′ = 0.

Create a free account to view solution

View Solution Free
Topic: Math miscellaneous·Practice all Math miscellaneous questions

More Math miscellaneous Questions

is equal to...Three forces and acting along IA, IB and IC, where I is the incentre of a ᐃABC, are in equilibrium. Then is...Let A = , then A2015 is...If a, b, c are distinct +ve real numbers and a2 + b2 + c2 = 1 then ab + bc + ca is...If I = & B = then (I + B)50 is:-...