Answer: triangle A
Step-by-step explanation:
Please give me brainliest
Answer:
1. The negative sign on an exponent means the reciprocal. A negative exponent tells how many times to divide a base number.
2. A positive tells how many times to multiply a base number.
could you also give me a brainliest if I am correct.
thanks!
We have:
![cot(-x)cos(-x)+sin(-x)=-\frac{1}{f(x)}](https://tex.z-dn.net/?f=cot%28-x%29cos%28-x%29%2Bsin%28-x%29%3D-%5Cfrac%7B1%7D%7Bf%28x%29%7D)
Then we use trigonometric identities to change the negative sign of the trigonometric functions, so:
![-sin(x)-cot(x)cos(x)=-\frac{1}{f(x)}](https://tex.z-dn.net/?f=-sin%28x%29-cot%28x%29cos%28x%29%3D-%5Cfrac%7B1%7D%7Bf%28x%29%7D)
We clear f(x):
![f(x)=\frac{1}{sin(x)+cot(x)cos(x)}=\frac{1}{sin(x)+\frac{cos(x)}{sin(x)}cos(x)}=\frac{1}{sin(x)+\frac{cos^2(x)}{sin(x)}}](https://tex.z-dn.net/?f=f%28x%29%3D%5Cfrac%7B1%7D%7Bsin%28x%29%2Bcot%28x%29cos%28x%29%7D%3D%5Cfrac%7B1%7D%7Bsin%28x%29%2B%5Cfrac%7Bcos%28x%29%7D%7Bsin%28x%29%7Dcos%28x%29%7D%3D%5Cfrac%7B1%7D%7Bsin%28x%29%2B%5Cfrac%7Bcos%5E2%28x%29%7D%7Bsin%28x%29%7D%7D)
we simply what we can:
![f(x)=\frac{1}{\frac{sin^2(x)+cos^2(x)}{sin(x)}}=sin(x)](https://tex.z-dn.net/?f=f%28x%29%3D%5Cfrac%7B1%7D%7B%5Cfrac%7Bsin%5E2%28x%29%2Bcos%5E2%28x%29%7D%7Bsin%28x%29%7D%7D%3Dsin%28x%29)
Thus, the correct answer is;
21+4(32-5)=448
I think it’s 448
Answer:
The constant of proportionality is always the point (x, k * f (x), where k is the constant of proportionality.
Step-by-step explanation:
Let's take as example a linear function of the form: y = kx.
Where, k is the constant of proportionality.
Therefore, the proportionality constant is the point: (x, kx)
Generically it is always the point: (x, k * f (x)
Where, f (x) is a function proportional to x. The constant of proportionality is always the point (x, k * f (x)), where k is the constant of proportionality.