Mathematics, 22.06.2019 08:30, edfrank6278

Tangent ? ) × cos /2 +? ) > 0. the answer is that cos ? < 0. i forgot to put the minus before. i get confusermd when i see questions similar to this when the radian is negative such as /2 i cant seem to solve it

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Tangent ? ) × cos /2 +? ) > 0. the answer is that cos ? < 0. i forgot to put the minus bef...