posted by s on .
trigonometric functions/ radians
the angle Ə is in the first quadrant, and cos Ə = 2/√5
a) draw a diagram to show the angle in standard position and a point P on its terminal arm
b) determine possible coordinates for P
We can't draw diagrams here, but theta is the angle whose tangent is 1/2, which is 26.56 dgrees, and the coordinates of P are (2,1). The other end of the hypotenuse is at (0,0)