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superduper
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Can someone explain how to get the derivative of 3x^2 + 15x + 5?
 3 years ago
 3 years ago
superduper Group Title
Can someone explain how to get the derivative of 3x^2 + 15x + 5?
 3 years ago
 3 years ago

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misterf Group TitleBest ResponseYou've already chosen the best response.2
there is a standard technique for taking the derivatives of a polynomial. first find the terms with similar degrees of x and combine them.
 3 years ago

misterf Group TitleBest ResponseYou've already chosen the best response.2
(that's already done in this case, heh).
 3 years ago

superduper Group TitleBest ResponseYou've already chosen the best response.0
Thanks guys I just started calculus
 3 years ago

misterf Group TitleBest ResponseYou've already chosen the best response.2
then decrement the exponent by one, and multiply the former exponent with the coefficient.
 3 years ago

julie Group TitleBest ResponseYou've already chosen the best response.1
If you're deriving a single one of those terms, the move is this: \[ax^b\] The derivative of this is: \[a \cdot b \cdot x^{b  1}\] The exception is for a constant (no power of x), which derives to 0.
 3 years ago

misterf Group TitleBest ResponseYou've already chosen the best response.2
calculus is great! it opens up a whole new realm of math.
 3 years ago

julie Group TitleBest ResponseYou've already chosen the best response.1
In this case, you can do that for each one and you get: \[3 \cdot 2x + 15 \cdot 1 = 6x + 15\]
 3 years ago

misterf Group TitleBest ResponseYou've already chosen the best response.2
looks like julie's got this one :)
 3 years ago

julie Group TitleBest ResponseYou've already chosen the best response.1
thanks for the medals :)
 3 years ago
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