Answer:
dy/dx = -1/√(1 - x²)
For 0 < y < π
Step-by-step explanation:
Given the function cos y = x
-siny dy = dx
-siny dy/dx = 1
dy/dx = -1/siny (equation 1)
But cos²y + sin²y = 1
=> sin²y = 1 - cos²y
=> siny = √(1 - cos²y) (equation 2)
Again, we know that
cosy = x
=> cos²y = x² (equation 3)
Using (equation 3) in (equation 2), we have
siny = √(1 - x²) (equation 4)
Finally, using (equation 4) in (equation 1), we have
dy/dx = -1/√(1 - x²)
The largest interval is when
√(1 - x²) = 0
=> 1 - x² = 0
=> x² = 1
=> x = ±1
So, the interval is
-1 < x < 1
arccos(1) < y < arxcos(-1)
= 0 < y < π
She should "Decide how to price her product". Which is response B.
This is because all the other options don't really make sense. You can't advertise something that you don't even know how much it costs. We've also already decided what the company sells. And we can't decide where the product will be sold unless we have made up the price for the product!
Hope this helps!
Your answer is D because his line needs to be slightly above +25 each time 50+25=75 so his line would be above 75
Answer: If I am correct the value of x might be f=0
Step-by-step explanation:
