Another critical numbers problem

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The discussion focuses on solving the derivative of the function g(T) = 5^(2/3) + t^(5/3) and finding its critical points. Participants clarify that to solve g'(t) = 0, one should factor out t^(-1/3) and ensure proper use of parentheses to avoid confusion with exponent notation. The derivative is expressed as g'(T) = (10/3)T^(-1/3) + (5/3)T^(2/3) = 0, and it is noted that the derivative does not exist at T = 0, marking it as a critical point. Clear differentiation between variables T and t is emphasized for accuracy.

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g(T)=5^2/3+ t^5/3

g't= 10/3T^-1/3+ 5/3t^2/3

ok do i factor this one out, this one looks confusing
 
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Are you trying to solve g'(t)=0? Then sure, factor out a t^(-1/3).
 
remember that when it says ^-1/3
its not saying (5t^-1)/3
 
That's why I put parentheses around the (-1/3). You should too.
 
afcwestwarrior said:
g(T)=5^2/3+ t^5/3

g't= 10/3T^-1/3+ 5/3t^2/3

ok do i factor this one out, this one looks confusing
I assume you meant g(T)= 6T^(2/3)+ T^(5/3).

After you got g'(T)= (10/3)T^(-1/3)+ (5/3)T^(2/3)= 0 you can multiply the entire equation by T^(1/3). (Obviously, the derivative does not exist at T= 0 so that is also a critical point.)

It's a lot easier to read with parentheses! Also, please do not use "T" and "t" to mean the same thing.
 

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