Answer:
What is the exact value of tan(−π4)? is 20
Answer:
the factors of x^3-1 are 
Step-by-step explanation:
We need to find factors of x^3 -1

So, the factors of x^3-1 are 
N+3=7. To find n, you need to have it by itself, so you can do that by subtracting 3 on both sides, so it would look like: n+3-3=7-3. Then you have n=4.
Answer:
I think it should be 15...
Step-by-step explanation:
13 * 3 = 39
5 * 3 = 15