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G(x) = 7 ln x / 3x+4 at x = e find g'(e)

1 Answer

4 votes

Answer:

To find g'(e), we need to find the derivative of g(x) with respect to x and then evaluate it at x = e.

Let's start by finding the derivative of g(x). g(x) can be written as (7 In x)/ (3x+4).

To find the derivative, we can use the quotient rule, which states that if we have a function of the form f(x) / g(x), then the derivative is given by:

f'(x)g(x) = f(x)g'(x)

(g(x))^2

Applying this rule to g(x) = (7 In x) / (3x+4), we get:

(7/x)*(3x+4)-(7 In x) *3

(3x+4)^2

Explanation:

Simplifying this expression, we get:

(21x + 28 - 21 In x)/(x(3x+4))^2

Now, let's evaluate this expression at x = e:

(21e + 28 - 21 In e) / (e(3e+4))^2

Since In e is equal to 1, we can simplify

further:

(21e + 28-21)/(e(3e+4))^2

(21e + 7) / (e(3e+4))^2

So, g'(e) is equal to (21e + 7) / (e(3e+4))}^2.

Please let me know if I can help you with anything else.

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