1.

From any point P (a,b,c) perpendiculars PM &PN drawn to zx and xy-plane respectively. Let alpha, beta, gamma be the angles which OP makes with coordinate planes and theta be the angle which OP makes with the plane OMN must be Equation of plane OMN must be

Answer»

`x/a - y/b + z/c =0`
`x/a + y/b - z/c =0`
`x/a - y/b + z/c =0`
`x/a- y/b - z/c =0`

ANSWER :A


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