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

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

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Date Posted: 7 years ago

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Lui Chee Teck

Lui Chee Teck

7 years ago

my mistake, should be tan(teeta + 90) instead