Answer:
c)
Step-by-step explanation:
To solve this, remember some properties of trigonometric functions.
Let . Then, by definition of inverse function, . Multiply by -1 to both sides of this equation to get .
Note that because sine is an odd function and cosine is an even function. Then . Take the inverse tangent in both sides to get .
Using the previous equations, we obtain:
"So the percent change from 5 to 7 is: 2/5 = 0.4 =40%."
X>=-4 so x is greater than or equal to -4
You can build as many numbers as you like: just pick three primes and repeat them as required.
The only caution is that you have to pick large enough primes to make sure that the result is larger than 1000.
Since , it is enough that the prime repeating three times is larger than 10.
So, for example, we can pick
- 2, not repeating
- 3, repeating twice
- 11, repeating 3 times
The result is