Edexcel A-Level Maths
what are the trig identities we arent given in the formulae book??
(edited 10 months ago)
Original post by demaeramen
what are the trig identities we arent given in the formulae book??
just double angle formulae as far as i know
Original post by m184
oh wait and also sin^2x + cos^2x = 1, tan^2x + 1 = sec^2x and 1 + cot^2x = cosec^2x
thank you!!!
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