Recent content by aj-smith

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    How to prove Theta for a incline plane.

    So just because the triangle at the block is a right angle, the angle closest to the block is considered theta? I see the part of 90-θ, but how do you match that with the opposing angle to theta in the 2nd triangle to make the assumption that that angle that is at the block is theta? Sorry...
  2. A

    How to prove Theta for a incline plane.

    In physics class, we always assumed both theta's. Can someone prove to me why the angle for gravity is the same as the angle of the inclined plane? I can clearly see that triangles could be created and visually they look similar, but obviously that isn't enough. Image is in the attachment...
  3. A

    How to interpret absolute value bars?

    I was further looking into the Cauchy schwarz inequality and i got to a statement as follows: A·B ≤ |A·B| However, when I tried to prove this using numbers on paper, I wasn't sure if the absolute value bars distribute among each term, which would lead to |A|·|B|, or if the final product is...
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