A triangle can be made only when we have three non collinear points, but in trigonometry when we are finding sin cos or tan of angle 0 or 90 degree, we do not get three non collinear points, then how can we conclude that it is a triangle or find anything about it by assuming it a triangle! Answer fast

Dear Student,

a triangle cannot be possible for the collinear points.
trigonometric function are define for the triangle they does mot tell about the collinearity of point . if the trigonometric function we are using that it self means the that is a triangle . 
so dont get confuse on different concept . 
Regards