Tan Shan Jing's answer to Daddy's Secondary 3 A Maths Singapore question.

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Tan Shan Jing
Tan Shan Jing's answer
26 answers (Tutor Details)
1st
hi! hope this helps:) use the double angle formula for sinx!
Daddy
Daddy
1 year ago
Just a question why did sinx turn into sinx/2
Tan Shan Jing
Tan Shan Jing
1 year ago
i used the double sine formula such that the angle was consistent throughout the equation