Answer:
Step-by-step explanation:
<u>As per the diagram we got:</u>
<u>As FH = 7x + 4 and EH = 9x - 2, we solve the following equation for x:</u>
- 7x + 4 = 9x - 2
- 9x - 7x = 4 + 2
- 2x = 6
- x = 3
<u>So each segment is:</u>
<u>Therefore</u>:
<u>So the variables are:</u>
Answer:
Step-by-step explanation:
![a.\\\frac{d}{dx}(\frac{-1}{1+x^2} )=\frac{d}{dx} [-1(1+x^2)^{-1}]=-1(-1)(1+x^2)^{-2}(2x)=\frac{2x}{(1+x^2)^2 }\\](https://tex.z-dn.net/?f=a.%5C%5C%5Cfrac%7Bd%7D%7Bdx%7D%28%5Cfrac%7B-1%7D%7B1%2Bx%5E2%7D%20%29%3D%5Cfrac%7Bd%7D%7Bdx%7D%20%5B-1%281%2Bx%5E2%29%5E%7B-1%7D%5D%3D-1%28-1%29%281%2Bx%5E2%29%5E%7B-2%7D%282x%29%3D%5Cfrac%7B2x%7D%7B%281%2Bx%5E2%29%5E2%20%7D%5C%5C)
b.
put 1+x²=u
2x dx=du
when x=0,u=1
when x=2,u=1+2²=5

Number 7: B=16. Number 8: A=30. Number 9: A=0
59m • tan 46 is -123.110198 meters.