Answer:
The pyrenees; mountains between Spain and France
Step-by-step explanation:
Which one is the middle one ?
Answer: option d.
Step-by-step explanation:
Based on the information given in the problem, you know that:
![tan^2x=\frac{1}{2}](https://tex.z-dn.net/?f=tan%5E2x%3D%5Cfrac%7B1%7D%7B2%7D)
You also know that:
![sec^2(x)=tan^2(x)+1](https://tex.z-dn.net/?f=sec%5E2%28x%29%3Dtan%5E2%28x%29%2B1)
Substitute values. Then, you obtain:
![sec^2(x)=\frac{1}{2}+1\\\\sec^2(x)=\frac{3}{2}](https://tex.z-dn.net/?f=sec%5E2%28x%29%3D%5Cfrac%7B1%7D%7B2%7D%2B1%5C%5C%5C%5Csec%5E2%28x%29%3D%5Cfrac%7B3%7D%7B2%7D)
Apply square root to both sides. Therefore, you obtain:
![\sqrt{sec^2(x)}=\±\sqrt{\frac{3}{2}}\\\\sec(x)=\±\frac{\sqrt{3}}{\sqrt{2}}\\\\sec(x)=\±\frac{\sqrt{3}}{\sqrt{2}}\frac{\sqrt{2}}{\sqrt{2}}\\\\sec(x)=\±\frac{\sqrt{3(2)}}{2}\\\\sec(x)=\±\frac{\sqrt{6}}{2}](https://tex.z-dn.net/?f=%5Csqrt%7Bsec%5E2%28x%29%7D%3D%5C%C2%B1%5Csqrt%7B%5Cfrac%7B3%7D%7B2%7D%7D%5C%5C%5C%5Csec%28x%29%3D%5C%C2%B1%5Cfrac%7B%5Csqrt%7B3%7D%7D%7B%5Csqrt%7B2%7D%7D%5C%5C%5C%5Csec%28x%29%3D%5C%C2%B1%5Cfrac%7B%5Csqrt%7B3%7D%7D%7B%5Csqrt%7B2%7D%7D%5Cfrac%7B%5Csqrt%7B2%7D%7D%7B%5Csqrt%7B2%7D%7D%5C%5C%5C%5Csec%28x%29%3D%5C%C2%B1%5Cfrac%7B%5Csqrt%7B3%282%29%7D%7D%7B2%7D%5C%5C%5C%5Csec%28x%29%3D%5C%C2%B1%5Cfrac%7B%5Csqrt%7B6%7D%7D%7B2%7D)
Answer:
C
Step-by-step explanation:
Hope it helps
Answer: 1/3x
Step-by-step explanation: