Answer:
no I don't think it's not beach or not the same
Answer:
Step-by-step explanation:
The trigonometric function that needs a domain restriction of ![[-\frac{\pi}{2},\frac{\pi}{2} ]](https://tex.z-dn.net/?f=%5B-%5Cfrac%7B%5Cpi%7D%7B2%7D%2C%5Cfrac%7B%5Cpi%7D%7B2%7D%20%5D)
to make it invertible is .
The function will pass the horizontal line test on this interval therefore making it an invertible function on this interval.
This explains why the inverse tangent function, 
has range .
Answer:
Step-by-step explanation:
time=1 years
interest=principal*time*rate/100
=8000*1*8/100
=64000/100
=640
therefore interest=640
2x-y=8...(1)
x+y=7....(2)
from (2)
y=7-x....(3)
put (3) into (1)
2x-(7-x)=8
2x-7+x=8
2x+x=8+7
3x=15
x=5.....(4)
put (4) into (2)
x+y=7
5+y=7
y=7-5
y=2
Hope it helps c:
