Question

if cos A is equal to 1 upon 2 then ​

Answer 1

Answer:

As you probably know cos(60 degrees)=1/2. It's a well-known fact that cos(x+180 degrees)=-cos(x). Thus theta=240 satisfies this equation.

Step-by-step explanation:

As you probably know cos(60 degrees)=1/2. It's a well-known fact that cos(x+180 degrees)=-cos(x). Thus theta

Answer 2

Answer:

As you probably know cos(60 degrees)=1/2. It's a well-known fact that cos(x+180 degrees)=-cos(x). Thus theta=240 satisfies this equation.