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September 4, 2015

Homework Help: Last two CALC questions. :)

Posted by Samantha on Friday, December 20, 2013 at 12:59am.

8. If f(x) = sin(7 − 5x), find f′(π), which is the derivative at π:

−0.754
−0.657
0
* 0.657
3.770


9. Given the function:
g(x)={x+b, x<0
{cos(x), x≥0

Find the value of b, if any, that will make the function differentiable at x = 0.

0
1
* 2
No such value exists.
There is not enough information to determine the value.

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