Question

range of X equals to 1 upon 1 - 2 cos x is​

Answer 1

Answer:

f(x)=1/1-2cosx

Step-by-step explanation:

we know that -1 ≤coxx≤1

-2cox x should be between-2 and 2

thus range is between

1-(-2) and between 1-(+2) range is between -1 and + 1/3

hope this helps you....