Take the deritiivive
![ln(2)cos(x)2^{sin(x)}-ln(2)sin(x)2^{cos(x)}](https://tex.z-dn.net/?f=ln%282%29cos%28x%292%5E%7Bsin%28x%29%7D-ln%282%29sin%28x%292%5E%7Bcos%28x%29%7D)
it is zero at pi/4 and it repeats at every pi
minimum at where slope goesfrom negative to positive
so at 5pi/4 and 13pi/4 so at every 2pi interval
evaluate origial at 5pi/4
![2^{sin(5pi/4)}+2^{cos(5pi/4)}](https://tex.z-dn.net/?f=2%5E%7Bsin%285pi%2F4%29%7D%2B2%5E%7Bcos%285pi%2F4%29%7D)
=
![(2^ \frac{- \sqrt{2} }{2} )+(2^ \frac{- \sqrt{2} }{2} )](https://tex.z-dn.net/?f=%282%5E%20%5Cfrac%7B-%20%5Csqrt%7B2%7D%20%7D%7B2%7D%20%29%2B%282%5E%20%5Cfrac%7B-%20%5Csqrt%7B2%7D%20%7D%7B2%7D%20%29)
=
![2(2^ \frac{- \sqrt{2} }{2} )](https://tex.z-dn.net/?f=2%282%5E%20%5Cfrac%7B-%20%5Csqrt%7B2%7D%20%7D%7B2%7D%20%29)
or aprox 1.22509
Answer:
- a) 3
- b) 6
- c) 9
- d) the outputs are 3 times as far apart as the inputs
Step-by-step explanation:
(a) "x" in considered to be the input to the function f(x). The variable(s) in parentheses as part of the function name are the inputs. The function value itself is the output.
That is, for an input (x-value) of 0, the output (f(0)) is 5. For an input of 1, the output (f(1)) is 8. These input values (0 and 1) are 1 unit apart: 1 - 0 = 1. The corresponding output values are 3 units apart: 8 - 5 = 3.
(b) Inputs -1 and 1 are 2 units apart (1-(-1)=2). The corresponding output values, 2 and 8, are 6 units apart. (8-2=6)
(c) Inputs 0 and 3 are 3 units apart. The corresponding output values, 5 and 14, are 9 units apart.
(d) The ratio of output differences to input differences can be seen to be ...
... 3/1 = 6/2 = 9/3 = 3
Output differences are 3 times input differences.
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<em>Comment on the problem</em>
These ratios are constant everywhere, so the function is considered to be "linear." The ratio is the "slope" of the line you see when the function is graphed.
Your answer would be -13/4.
Answer is B. Subtract 10 from both sides of the equation
1st step for solving X is Moving all terms to the left of the equation and simplifying
Subtract 10 from both sides of the equation
x^2 + 6x - 1 = 0