Potatoes 's answer to Potato's Secondary 3 E Maths Singapore question.
done
3 Upvotes
clear 0 Downvotes
Cos (theta) = -cos(180-theta)
Cos 150 = -cos(y)
Y=180-150
Y=30
Cos 150 = -cos(y)
Y=180-150
Y=30
Date Posted:
1 year ago
360 Tutoring Program