Answer:
Step-by-step explanation:
We have the function:
![h(x)=f[f(x)]](https://tex.z-dn.net/?f=h%28x%29%3Df%5Bf%28x%29%5D)
And we want to find:
So, we will differentiate function <em>h</em>. By the chain rule, this yields:
![h^\prime(x)=f^\prime[f(x)]\cdot f^\prime(x)](https://tex.z-dn.net/?f=h%5E%5Cprime%28x%29%3Df%5E%5Cprime%5Bf%28x%29%5D%5Ccdot%20f%5E%5Cprime%28x%29)
Then it follows that:
![h^\prime(1)=f^\prime[f(1)]\cdot f^\prime(1)](https://tex.z-dn.net/?f=h%5E%5Cprime%281%29%3Df%5E%5Cprime%5Bf%281%29%5D%5Ccdot%20f%5E%5Cprime%281%29)
Using the table, we acquire:
And using the table again, we acquire:
Evaluate. Hence:
Flipping something 180 degrees (doesn't matter if clockwise or counterclockwise) will always flip that thing upside down.
Your answer is 180 degrees.
Now, the reason why it's not 270 degrees clockwise because that's pretty much turning that 90 degrees counterclockwise. And 90 degrees is about how much a car does when making a left or right turn.
Have an awesome day! :)
The shop makes 25% profit if the cost price per dress is R280.
I think that the answer is 10
