Determine which of these functions will cross for a given range: cos (x), tg (x), sin (x) in the interval [0, 1].

 functions will cross for a given range 
cos (x), tan (x), sin (x) in the interval [0, 1].

[Image Analyst]

Cross what y value? y=0? In other words, the x axis?

[Matt Kindig]

This isn't a Matlab question.

[Walter Roberson]

What is tg(x) ?

Answer 1

[Roger Stafford]

If by "cross" you mean that a pair of curves pass through the same x,y point, then you are trying to determine, for example, if an x value exists in the given range for which

 cos(x) = tan(x)

You can use matlab for this purpose if you go about it properly. However playing around with a calculator could accomplish the same thing in this case.