ok when i have a 90 degree angle = theta how would you graph it... would the hypotenuse connect the x axis and y axis or what?

Question

dumbcow · Answer

you mean for a right triangle?
yeah if you draw a line from y-axis to axis, that would form a right angle at the origin

dumbcow · Answer

*x-axis

anonymous · Answer

no it is a trig question so for quadrant angle but yes still a right angle

dumbcow · Answer

what exactly do you have to graph?

anonymous · Answer

$$\theta =3\pi \div2$$

anonymous · Answer

and i have to find sin cos tan... but i dont know if the graph should divide quadrant three like if it were a 45 degree angle or connectthe y axis to the x axis

dumbcow · Answer

ok use the unit circle
3pi/2 is an angle that goes from positive x-axis to negative y-axis
draw line from positive x-axis to negative y-axis
reference angle is 90 degrees
sin 90 = 1
cos 90 = 0
sin refers to value of y-axis
cos refers to value of x-axis
since we are on negative y-axis
sin 3pi/2 = -1
tan = sin/cos
tan 3pi/2 = -1/0 = undefined

anonymous · Answer

ok