Mathematics, 24.10.2021 16:20 mayhem0316oyrjuo

How to write sin and cos and all? Like should they be in first letter uppercase, or whole lowercase?

My maths teacher is writing with first letter uppercase, but I see many YouT. ubers and all writing it in fully lowercase! so someone clear it up and pick me out of this puzzled condition

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How to write sin and cos and all? Like should they be in first letter uppercase, or whole lowercas...