Lui Chee Teck's answer to daffodilx's Secondary 4 A Maths question.

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Lui Chee Teck
Lui Chee Teck's answer
8 answers (Tutor Details)
1st
Lui Chee Teck
Lui Chee Teck
6 years ago
my mistake, should be tan(teeta + 90) instead