-1 --------------- ___ 2*\/ x *(1 + x)
d / -1 \ --|---------------| dx| ___ | \2*\/ x *(1 + x)/
The derivative of a constant times a function is the constant times the derivative of the function.
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
The derivative of a constant times a function is the constant times the derivative of the function.
Apply the product rule:
; to find :
Apply the power rule: goes to
; to find :
Differentiate term by term:
The derivative of the constant is zero.
Apply the power rule: goes to
The result is:
The result is:
So, the result is:
The result of the chain rule is:
So, the result is:
Now simplify:
The answer is:
/ ___ 1 + x\ -|- 2*\/ x - -----| | ___| \ \/ x / --------------------- 2 4*x*(1 + x)
/ ___ 1 + x /1 2 \ / ___ 1 + x\ / ___ 1 + x\\ |2*\/ x + ----- 1 + x |- + -----|*|2*\/ x + -----| 2*|2*\/ x + -----|| | ___ 4 - ----- \x 1 + x/ | ___| | ___|| | \/ x x \ \/ x / \ \/ x /| -|--------------- - --------- + ----------------------------- + -------------------| | 2 3/2 x x*(1 + x) | \ x x / ------------------------------------------------------------------------------------- 2 8*(1 + x)
/ ___ 1 + x\ / ___ 1 + x\ /3 8 4 \ /1 2 \ / ___ 1 + x\ / ___ 1 + x\ / ___ 1 + x\ /1 2 \ / ___ 1 + x\ / 1 + x\ / 1 + x\ 4*|2*\/ x + -----| |2*\/ x + -----|*|-- + -------- + ---------| |- + -----|*|2*\/ x + -----| / 1 + x\ /1 2 \ / 1 + x\ 8*|2*\/ x + -----| 12*|2*\/ x + -----| 2*|- + -----|*|2*\/ x + -----| 3*|2 - -----| 3*|4 - -----| | ___| | ___| | 2 2 x*(1 + x)| \x 1 + x/ | ___| |4 - -----|*|- + -----| 6*|4 - -----| | ___| | ___| \x 1 + x/ | ___| \ x / \ x / \ \/ x / \ \/ x / \x (1 + x) / \ \/ x / \ x / \x 1 + x/ \ x / \ \/ x / \ \/ x / \ \/ x / - ------------- - ------------- + ------------------- + --------------------------------------------- + ----------------------------- - ----------------------- - ------------- + ------------------- + -------------------- + ------------------------------- 5/2 5/2 3 x 2 3/2 3/2 2 2 x*(1 + x) x x x x x x *(1 + x) x *(1 + x) x*(1 + x) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 2 16*(1 + x)