9000038906

SubArea: 
Sine, cosine, tangent and cotangent
Level: 
B
Project ID: 
9000038906
Accepted: 
1
Clonable: 
0
Easy: 
0
Consider the function f:y=tg⁡x. In the following list identify the nonnegative function.
None of the given functions is nonnegative.
A⋅f(x), where A∈(−∞;0)
A⋅f(x), where A∈(0;+∞)
f(B⋅x), where B∈(0;+∞)
f(x+C), where C∈(−∞;0)
Fixed Answer: 
First Fixed