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Why d/dt(a+bt^2)=2bt
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Why d/dt(a+bt^2)=2bt

User Ranjan Sarma
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Because a is not a function of t .

So d/dt of a is zero.

User Masterofdestiny
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Because a, not being multiplied for t, becomes a constant and goes away.
bt^2 is an elementary derivation

d/dt(a+bt^2) = 0 + 2bt = 2bt
User BMoon
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