1.

A conic section is defined by the equations x=-1+sec t, y=3+3 tan t. the coordinates of the foci are

Answer»

`(-1-sqrt(10),2) and (-1+sqrt(10),2)`
`(-1-sqrt(8),2) and (-1+sqart(8),2)`
`(-1,2-sqrt(8))and(-1,2+sqrt(8))`
`(-1,2-sqrt(10)) and (-1,2+sqrt(10))`

ANSWER :A


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