Answer:

Step-by-step explanation:
Given the differential (d/dx)(cos−1(x)), to find the equivalent formula we will differentiate the inverse function using chain rule as shown below;
let;


Therefore;

Since x = cos y from the above substitute;

Hence,
gives the required proof
Answer: A quadratic graph can have two x-intercepts
brainliest pls pls pls
Step-by-step explanation:
x is greater than 1
A tenth is the number that occurs after the decimal
If the number after the tenth is five or higher, then you round up
If the number after the tenth if four or lower, then the tenth stays the same value as it is
In this case, the Ume after the tenth is exactly four, so the value of the tenth stays the same
So your answer is 478.5
Answer:
100
Step-by-step explanation:
something about them being diagnol to each other makes them equal
havent done geometry in a while lol
hope this helps <3