At this point i can tell you the value of tan 19 pi/3 but still having that inner doubt and definitely cannot solve the advanced identities given later in my book, furthermore I cannot understand anything after the 1st quadrant
#I don't seem to understand trigonometric functions very well
hardy delta
main umbraBOT
At this point i can tell you the value of tan 19 pi/3 but still having that inne...
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woven wave
so you understand that the coordinates of the point are (cos,sin)
right?
@hardy delta
now in the second quadrant we just rotate mirror the original (an angle of theta)
hardy delta
yeah
woven wave
and since the x axis is a straight line the entire angle is $\pi$
tulip abyssBOT
wolfqz
hardy delta
yes
woven wave
so the part of the angle that is NOT included by $\theta$ is $\pi - \theta$
tulip abyssBOT
wolfqz
woven wave
now to find the coordinates, we know the angle now so its $(\cos(\pi-\theta),\sin(\pi-\theta))$
hardy delta
-cos $\theta$, sin $\theta$
woven wave
that
woven wave
-cos $\theta$, sin $\theta$
yes
did he just leave the server after getting his help 😭