Kahwai's answer to Dave's Secondary 4 A Maths Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
The formula is wrong, I wrongly done but concept is correct
Use Asin(a+b) = Asinacosb+ A cosasinb
Transform it
Special angle formula sin30degree is 1/2 and etc.
Second part answer is okay
Use Asin(a+b) = Asinacosb+ A cosasinb
Transform it
Special angle formula sin30degree is 1/2 and etc.
Second part answer is okay
Date Posted:
3 years ago
360 Tutoring Program