1.

IF thelinex-y=-4kis a tangent to theparabolay^2= 8x at P , thenthe perpendiculardistance ofnormalat Pfrom( k , 2k)is

Answer»

`(5)/(2sqrt(2))`
`(7)/(2sqrt(2))`
`(9)/( 2sqrt(2))`
`(1)/(2sqrt(2))`

Answer :C


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