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secondary 3 | A Maths
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secondary 3 chevron_right A Maths

How to do part ii)

Date Posted: 6 years ago
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Tan Kiat Boon
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Hope it helps! :) not sure is it right. Apologies in advance.
Tan Kiat Boon
Tan Kiat Boon
6 years ago
Sorry I make a mistake. Instead of cos (beta) more than 0, based on (i),
t-tan-1(5/3) must be between 0 and pi/2. Therefore, u can just ignore the part where I use 2 pi minus the term.
Do let me know If you don't understand what I'm trying to say >.<