/ ________________\ | / 2 | log\\/ 2*x - 5*x + 1 /
log(sqrt(2*x - 5*x^2 + 1))
Let .
The derivative of is .
Then, apply the chain rule. Multiply by :
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Differentiate term by term:
Differentiate term by term:
The derivative of a constant times a function is the constant times the derivative of the function.
Apply the power rule: goes to
So, the result is:
The derivative of a constant times a function is the constant times the derivative of the function.
Apply the power rule: goes to
So, the result is:
The result is:
The derivative of the constant is zero.
The result is:
The result of the chain rule is:
The result of the chain rule is:
Now simplify:
The answer is:
1 - 5*x -------------- 2 2*x - 5*x + 1
/ 2 \ | 2*(-1 + 5*x) | -|5 + --------------| | 2 | \ 1 - 5*x + 2*x/ ---------------------- 2 1 - 5*x + 2*x
/ 2 \ | 4*(-1 + 5*x) | -2*(-1 + 5*x)*|15 + --------------| | 2 | \ 1 - 5*x + 2*x/ ----------------------------------- 2 / 2 \ \1 - 5*x + 2*x/