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Mathematics 21 Online
OpenStudy (algtrigcalc):

how do you simplify this?

OpenStudy (algtrigcalc):

|dw:1476328998522:dw|

Directrix (directrix):

I'll give this a shot. Maybe someone will check my work.

OpenStudy (algtrigcalc):

the answer is suppose to be |dw:1476329352410:dw|

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