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The derivatives for this problem are given as follows:
a) 
b)
.
<h3>What is the derivative of the sum?</h3>
The derivative of the <u>sum is the sum of the derivatives</u>.
In this problem, the function is:

Using a derivative table for the derivatives of the cosine and the ln, the derivative of the function is:


What is the product rule?
The derivative of the product is given as follows:

In this problem, we have that:
.
.
Hence the derivative is:
.
More can be learned about derivatives at brainly.com/question/2256078
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Answer:
Step-by-step explanation:
2/-3 is the answer mark me as brainliest
Answer:
-6 + 8d - 2c
-2c +8d -6
-2 (3 - 4d + c)
Step-by-step explanation:
hope this helps