Answer:
Step-by-step explanation:
We are given that K is the midpoint of JL. Using this information, we want to find JL.
By the definition of midpoint, this means that:
Substitute them for their equations:
Solve for <em>x.</em> Subtract 8<em>x</em> from both sides:
Add 1 to both sides:
And divide both sides by 6. Hence:
JL is the sum of JK and KL. Hence:
Since JK = KL, substitute either one for the other:
Substitute JK for its equation:
Since we know that <em>x</em> = 2:
Thus:
The derivatives for this problem are given as follows:
a)
b) .
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:
f(- 2) = 8
Step-by-step explanation:
Evaluating for x = - 2
f(- 2) = 2 - 4(- 2)³ - 11(- 2)² + 3(- 2) - 6
= (2 × 16) + (- 4 × - 8) + (- 11 × 4) - 6 - 6
= 32 + 32 - 44 - 6 - 6 = 8