Basic Trigonometry Notes (handwritten), Study notes of Mathematics

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= }=_ gink = (tans) oa 7 =Cogn =—tanx _\imp property). Tt t_aPtec every TT interval. = = tan T+2x)= tanx ymtx)= tanx wv (ner). 1) cop x= Cosx ee Sin 2) | cor =>) = —cotx 3) | cot (+x) = cotx 4) | cot (2m1-x) = -cotx __5) | cot (am1+2)= cotx 7 x 6) col(anm tx) = cotx v (ner) = e ep fences — 4) | cosecx= 1 (+ve) 4) cosec (oT1-x) = — t £€ ginx sinx Lcosec (1r-x) = 1 (ve) 5) cosec (Ot) = 2 (eve) 4 Sinx sinx 3) |cosec (I+x)= - 1 ve) 6) cosec (2nm+x)=_t ve) Sinx sinx secx (i+ton*x=sec*x)~ ® at liv oh gec?x -tan2x =1 _excepr if c= Wa) _ &_(geex- ton) (sex t tans) =2_ ee — NOTE: Whenever there iS Q term of secx trans | then think of Secx-tanx alSo- | —egk& cosec x = - an Assume this 1 a = rm _ ae Appiving py thagoras Theorns Bee ‘= i cae = Soe Sec? xX -— 1 = cot?x Apo * : COSe IY [eosae = cos?6—Ssin?e| 1) cose 7 CoS26 = 1-2sin26] (Q-2) - “eS C0S26 = 25in6 | (2-3) [Ni-coss6 = 2 Iginol |_@:4) ( sin29= 1-cos?6 [casse= 2cos?6-1] (25) <7 | from o-1 [ T+ cosa6 = 900870 | (2-6) 27 BO [ttcos26 = Va icose! | (2-7) a | cas2@= 1-tap?6 My |i- «°,..Ittane