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secondary 4 | A Maths

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Hi can sb help me check if the show that qns for 29a is correct? I’m not sure if I did it wrong, tqtq

(sintheta-b)/(a-costheta) idk how to change into tan coz the a and b r still there lolz.

Express a and b in terms of sin x and cos x

I subsequently divided both the numerator and the denominator by cos x because sin x / cos x is tan x and of course cos x / cos x = 1.

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