La fórmula correcta para encontrar el valor del coseno de un ángulo agudo en un triángulo rectángulo dado es:

El coseno del ángulo esta dado por:

Step-by-step explanation:

Si tenemos un triángulo recatángulo, el coseno del ángulo está dado por:

Donde:

Espero te haya sido de ayuda!

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

constants mean the stopped points or the points on a graph that nothing is changing, hope this

step-by-step explanation: