Helpful steps please. An equation of the terminal side of an angle theta in standard position is given. Find the indicated trigonometric function of theta. 2x+9y=0,x is greater or equal 0; Find cot theta. I tried solving it so far and I got : sqrt(85)/2 .

Question

Helpful steps please. An equation of the terminal side of an angle theta in standard position is given. Find the indicated trigonometric function of theta.  2x+9y=0,x is greater or equal 0; Find cot theta. I tried solving it so far and I got : sqrt(85)/2 .

danjs · Answer

y = (-2/9 )x 

(cos(theta), sin(theta))      is the point on the unit circle, radius 1

danjs · Answer

where does y=-2/9  x  intersect the unit circle , in the xy plane

danjs · Answer

that will be your point   (x,y) = (cos(theta), sin(theta))

then

cot(theta) = cos(theta) / sin(theta)

anonymous · Answer

would cot(theta)= -9/2 ?