AQA Core 4 4.05 Solving an equation using trig formulae

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Thanks for the tip Jack. I tried the question before watching the solution and divided through by cosx meaning I lost the solution fro when cosx=0. I won't be making that mistake in my core 4 exam! Your videos are saving my A level!!!!

jgreen
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Do you have any videos on how to find the maxium and positive value of a trig function?..

BAMitsFRESHPINK
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Could you not change cosx to (1-sinx)?

Rafia