If sin yº = -and tan yº = 1, what is the value of cos y

The value of cos y° is -1

Step-by-step explanation:

Given as Trigonometrical functions as :

sin y° = - 1

tan y° = 1

Let The value of cos y° = x

Now, As we know

tan =

So, tan y° =

∴ cos y° =  

Or,  x =

i.e, x = - 1

So, The value of cos y° = x = -1

Hence, The value of cos y° is -1  Answer

answer: c

because if you look at the chart you can see a pattern and compare it to the question he simplify out your

but i think the formula is f(x)=6x

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.