what is sin180+x and cos 180-x
Answers
Answered by
0
Answer:
sin(180+x)
sin(2*90+x)
From ASTC rule sin (180+x) lies in 3rd quadrant
therefore sin is negative
so, = -sin x
cos (180-x)
cos(2*90-x)
from ASTC cos lies in 2nd quadrant.
therefore = -cos x
Similar questions