1.

The most general value of theta which satisfies both the equations tan theta = - 1 and cos theta = (1)/(sqrt(2)) is

Answer»

`n PI + (7 pi)/(4), n in Z`
`2N pi + (7 pi)/(4), n in Z`
`n pi + (-1)^(n)(7 pi)/(4), n in Z`
`(7 n pi)/( 4), n in Z`

ANSWER :B


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