Answer:
- 1
Step-by-step explanation:
![\frac{1}{\cot ^2\left(x\right)}-\frac{1}{\cos ^2\left(x\right)}\\\\\mathrm{Use\:the\:basic\:trigonometric\:identity}:\quad \frac{1}{\cos \left(x\right)}=\sec \left(x\right),\\\frac{1}{\cot ^2\left(x\right)}-\sec ^2\left(x\right)\\\\\mathrm{Use\:the\:basic\:trigonometric\:identity}:\quad \frac{1}{\cot \left(x\right)}=\tan \left(x\right),\\\tan ^2\left(x\right)-\sec ^2\left(x\right)\\\\=> \frac{\sin ^2\left(x\right)}{\cos ^2\left(x\right)}-\frac{1}{\cos ^2\left(x\right)}\\](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%5Ccot%20%5E2%5Cleft%28x%5Cright%29%7D-%5Cfrac%7B1%7D%7B%5Ccos%20%5E2%5Cleft%28x%5Cright%29%7D%5C%5C%5C%5C%5Cmathrm%7BUse%5C%3Athe%5C%3Abasic%5C%3Atrigonometric%5C%3Aidentity%7D%3A%5Cquad%20%5Cfrac%7B1%7D%7B%5Ccos%20%5Cleft%28x%5Cright%29%7D%3D%5Csec%20%5Cleft%28x%5Cright%29%2C%5C%5C%5Cfrac%7B1%7D%7B%5Ccot%20%5E2%5Cleft%28x%5Cright%29%7D-%5Csec%20%5E2%5Cleft%28x%5Cright%29%5C%5C%5C%5C%5Cmathrm%7BUse%5C%3Athe%5C%3Abasic%5C%3Atrigonometric%5C%3Aidentity%7D%3A%5Cquad%20%5Cfrac%7B1%7D%7B%5Ccot%20%5Cleft%28x%5Cright%29%7D%3D%5Ctan%20%5Cleft%28x%5Cright%29%2C%5C%5C%5Ctan%20%5E2%5Cleft%28x%5Cright%29-%5Csec%20%5E2%5Cleft%28x%5Cright%29%5C%5C%5C%5C%3D%3E%20%5Cfrac%7B%5Csin%20%5E2%5Cleft%28x%5Cright%29%7D%7B%5Ccos%20%5E2%5Cleft%28x%5Cright%29%7D-%5Cfrac%7B1%7D%7B%5Ccos%20%5E2%5Cleft%28x%5Cright%29%7D%5C%5C)
![=> \frac{\sin ^2\left(x\right)-1}{\cos ^2\left(x\right)}\\\\=> -\frac{\cos ^2\left(x\right)}{\cos ^2\left(x\right)}\\=> - 1](https://tex.z-dn.net/?f=%3D%3E%20%5Cfrac%7B%5Csin%20%5E2%5Cleft%28x%5Cright%29-1%7D%7B%5Ccos%20%5E2%5Cleft%28x%5Cright%29%7D%5C%5C%5C%5C%3D%3E%20-%5Cfrac%7B%5Ccos%20%5E2%5Cleft%28x%5Cright%29%7D%7B%5Ccos%20%5E2%5Cleft%28x%5Cright%29%7D%5C%5C%3D%3E%20-%201)
Hope that helps!
12/6x its 2x your anwser would be 2x its simple
Answer:
It was -23.2 degrees at 6pm.
Step-by-step explanation:
Just simple addition and subtraction!
Think it's done like this but im not sure if the tan2x part is correct
Hello!
<u><em>Answer:</em></u>
<u><em>y=23</em></u>
<u><em>*The answer must have a positive sign.*</em></u>
Step-by-step explanation:
First, you switch sides of an equation.
![y-11=12](https://tex.z-dn.net/?f=y-11%3D12)
Then, you add by 11 from both sides of an equation.
![y-11+11=12+11](https://tex.z-dn.net/?f=y-11%2B11%3D12%2B11)
And finally simplify and solve.
![12+11=23](https://tex.z-dn.net/?f=12%2B11%3D23)
Answer: ![y=23](https://tex.z-dn.net/?f=y%3D23)
Hope this helps!
Thanks!
-Charlie
Have a great day!
:)
:D