/r/calculus
How do I tell the direction of the v(t) and a(t) vectors?? I assumed that a(t) must be perpendicular to v(t) because it’s the derivative of v(t) but that’s obviously not the case :/
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The equation for this hyperbolic paraboloid is y=z^2 - (x^2/9). But how do I know which way it opens??
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