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Mathematics, 14.07.2019 12:00 edjiejwi

If sin42 degrees = 2/3 then cos48 degrees = what? if tan20.5= 3/8, the tan69.5= what?

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If sin42 degrees = 2/3 then cos48 degrees = what? if tan20.5= 3/8, the tan69.5= what?...
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