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Expression (1)/(cos 290^(@)) + (1)/(sqrt...

Expression `(1)/(cos 290^(@)) + (1)/(sqrt(3) sin 250^(@))` equals

A

`(2)/( sqrt( 3))`

B

`( 4)/( sqrt( 3))`

C

`( 6)/( sqrt( 3))`

D

none

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The correct Answer is:
B
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