Recent content by Psi137

  1. Psi137

    B Can 2(sinx) be called a 'trigonometric function'?

    Can you tell me why that mistake happens and why you supported it? Thank you.
  2. Psi137

    B Can 2(sinx) be called a 'trigonometric function'?

    Yeah, of course I know this is of no use, but I need the answer of this junk so that I can withdraw or revise my thinking
  3. Psi137

    B Can 2(sinx) be called a 'trigonometric function'?

    Recently I debated with a friend of mine, and the topic was 'Is it reasonable that we call 2(sinx) as trigonometric function?'. My friend said that if we can call y=2(sinx) as trigonometric function, we can call y=x as trigonometric too, because if we call the former 'correct', there is no...
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