# The d.r. of normal to the plane through (1, 0, 0), (0, 1, 0) which makes an angle with plane   are Option 1) Option 2) Option 3) Option 4)

As we learnt in

Direction Ratios -

If l,m,n are direction cosines then three numbers a,b,c propotional to l,m,n are called direction cosines.

-

Plane through (1,0,0) is

It passes though (0,1,0)

We get,

DRs of normal are

Option 1)

Incorrect option

Option 2)

Correct option

Option 3)

Incorrect option

Option 4)

Incorrect option

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