Problem :
The point (0,0) lies on the graphs of which
functions?
Sine and
tangent
Problem :
The point (0,1) lies on the graphs of which functions?
Cosine and
secant
Problem :
Which functions have a
range of -1 to 1?
Sine and cosine.
Problem :
Which functions approach âàû and - âàû as θ approaches zero?
Cotangent and
cosecant
Problem :
For which functions are the values between -1 and 1 not in the range?
Secant and cosecant