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he66666
 5 years ago
Determine f(x) = [(x7)^9]/12 using the derivative rules. I don't get his question because the constant 12 in the denominator confuses me when using the product rule.. please help
he66666
 5 years ago
Determine f(x) = [(x7)^9]/12 using the derivative rules. I don't get his question because the constant 12 in the denominator confuses me when using the product rule.. please help

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bahrom7893
 5 years ago
Best ResponseYou've already chosen the best response.0just take it out.. its a constant u can ignore it and at the end add it again..

bahrom7893
 5 years ago
Best ResponseYou've already chosen the best response.0do it like 1/12 times derivative of the rest..

he66666
 5 years ago
Best ResponseYou've already chosen the best response.0our teacher told us that we should put 12 as a negative exponent, so 12^(1) and use the product rule.. :S

bahrom7893
 5 years ago
Best ResponseYou've already chosen the best response.0u can't do that... its not 12x is it?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0You CAN do that, but it's not a good way to do it. Just remember that 12^(1) is still a constant, so its derivative is 0.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0The best bet with constant multipliers, like your 1/12, is to do as bahrom says  hide the constant, take the derivative of what's left, then put the constant back.

he66666
 5 years ago
Best ResponseYou've already chosen the best response.0Oh i see. But if I do 12^(1), does it make a difference if I do (12)^(1) or 12^(1) when in the equation?

bahrom7893
 5 years ago
Best ResponseYou've already chosen the best response.0its the same thing but u wont use product rule for constants.. u probably copied the question wrong..

bahrom7893
 5 years ago
Best ResponseYou've already chosen the best response.0ANY DIFFERENTIATION RULES ARE FOR VARIABLES OR FUNCTIONS WITH VARIABLES...

he66666
 5 years ago
Best ResponseYou've already chosen the best response.0this question was on the test and I got it wrong :( after we got it back, she told us that we should use the product rule so yeah.. thanks guys :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Using product rule on 12^(1) * (x  7)^9 gives 0 * (x  7)^9 + 12^(1) * 9(x  7)^8 (and then simplify). It works, but why would you go to the extra trouble?
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