Multivariable Chain Rule Q1 from Session 33: Examples. Should the answer not include -100 as a constant? i.e. is du/dt, where u=-100e^t, not equal to -100e^t?
OCW Scholar - Multivariable Calculus
Stacey Warren - Expert brainly.com
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The answer is correct, du/dt is equal to -100e^t; the constant stays through the derivative, and the only time a constant disappears is when it is alone, e.g. u=-100, then du/dt=0.
So the answer in problem set is wrong then as I was suggesting - it drops the constant.