See Eric Nicholas K's answer to Rae Kuan's Secondary 4 A Maths Singapore question

Eric Nicholas K's answer to Rae Kuan's Secondary 4 A Maths Singapore question.

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Date Posted: 4 years ago

Comments 2 add a comment

Rae Kuan

4 years ago

thanks!

Jiayang

4 years ago

Alternatively you can convert your tangents to sines and cosines first. The intuition is that at the end of the day you have sines and cosines so perhaps you can convert everything to sines and cosines from the get go.