Question

the range of the function f(x)=1/2+cosx​

Answer 1

Answer:

-60

Step-by-step explanation:

f(x)=0

cosx+1/2=0

cosx=-1/2     cos-60=-1/2

x=-60

Answer 2

Answer:

[-0.5,1.5]

Step-by-step explanation:

range of cosx: [-1,1]

now 1/2 is added to cosx for every value of x thus its range overall increses by 1/2

range of f(x): [-0.5,1.5]