WEE SOO JUN's answer to Gigi's Secondary 4 A Maths question.
Apologies, for 9(b) the last part should be 2(tanx)^2 + tanx - 1 = 0, then the answers should be 0.463, 3.61, 3pi/4, 7pi/4
Alright, thankyou! ^^
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