A few days ago
Need help please really bad in mathh?
1)Let f(x) = [√{ x } − 2 /(√{ x } + 2 )].
f′( 4 ) =___
2) If f(x) = [(2 x^3− 8)/(x^4)], find f′( x ).=____
Top 5 Answers
A few days ago
Favorite Answer
First do F'(x) then plug 4 in x’s place you get
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A few days ago
1. Just input 4 wherever there’s an x, giving you:
f(4)=[â{ 4} â 2 /(â{ 4} + 2 )]
Now, you want to do the square root giving you:
f(4) = 2 – 2/(2+2)
Next, do your addition that’s in brackets:
2 – 2/4
Simplify your fraction to give you 2-1/2 which becomes f(4)=1 1/2
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A few days ago
1) 3 and 1 use both positive and negative values
2)(6 x^2-8)/4 x^3
0
A few days ago
If you don’t know your math homework,then ask your teacher for help,otherwise you’ll never learn it.
0
A few days ago
i am bad at math too
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