Low Cheng Yi's answer to nic's Secondary 4 A Maths question.

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Low Cheng Yi
Low Cheng Yi's answer
41 answers (Tutor Details)
1st
Tangent inverse the last part and reject the one out of range :P
nic
Nic
6 years ago
sorry but the correct answer is -1/3, i just could not get the working to get there
Low Cheng Yi
Low Cheng Yi
6 years ago
Oops i made a mistake haha give me awhile
nic
Nic
6 years ago
sorry there many be typo, (tan2a+b) should be (tan(2a+b)), i will check to cfm
nic
Nic
6 years ago
yeah it is a typo
Low Cheng Yi
Low Cheng Yi
6 years ago
Yeah haha if not i get 4tan^2b +BtanB - 1 cant solve