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y 9 G b 3 TRIGON049TRIC >IORIr[ULA r <br /> B B <br /> -7 <br /> g a c c <br /> 7.3 � G � a a <br /> r 59 c- A A+ <br /> CA b <br /> e Oblique Triangles <br /> ¢G0 sO! 1P G' •` Solutibn of Right Triangles <br /> For Angle A a cos b tan a cot= b o. <br /> = o / = o. ffi b . —,Dec- <br /> 7 <br /> b cosec= e <br /> 63 ' 17 9 1 .3 (liven R a 9 a <br /> a a,b ,o "tan A--= cotB,o = a <br /> os <br /> o,0.0 7vz d4 o A,$ b Sind @a=cosB,b=%/ e a o—a _T <br /> SI� ��' .sa A,a B, b, a B=90°—A,b-acotA,0= sin A. <br /> Z s, g X �5 o S.Y/, ,-.a, o B=90—A,a = b tan A,o=coe A. O 7 <br /> 4Q s B=90°—A,a=osinA,b=ccosA, <br /> 70 Solution of Oblique Triangles <br /> G ' *kuired <br /> asinB <br /> C b sin A ' C= 180°—(A+B),e =asin C <br /> sin A <br /> a, b, B,c, C sinB= bsaA',C= 180°—(A+B),o = asiaC <br /> �f L 3 i y` sin A <br /> C A,B,o A+B-1801—C tan j(A—A= Q--b tan (A+B) <br /> A- A is i -01 i3 pl y �,:• ...: asin <br /> C a+ b <br /> e — <br /> � g sin A <br /> b, e d,B, C e.a+b+o <br /> sin A— <br /> .f 5q,3/ �`� 5 2 , <br /> a o <br /> 2 ,area <br /> 9 <br /> u a p z ,o dr bre Atne b o n A <br /> area - t <br /> o <br /> `� <br /> �� as A,B,C,a Area area - 2 C <br /> sin A <br /> 0 S g 5• iV <br /> /k REDUCTION TO HORIZONTAL <br /> Horizontal <br /> � tan -scone distance m,ltfrtic" t •a LY th• <br /> Ib 1 tae Vert.anis=6°IW.r T�� 1a <br /> / eco 0 666a Horlsontal distance=!ls a0Y tt. <br /> tits(1-aoaiinne M°t+e dtetanee W t slope <br /> Same fin as in the vt eSed3�eumptbe follow- <br /> s � Horizontal distanee r-,m is ohtdged.Cosine 6 1-io6Y=.0011. <br /> 8C.0011�1.31.110.4-1.31=E1a0e tt, <br /> 1.3 ben the rlae L Itzlo�n.the roroee�o diatasee is aDDra:izoatel -lite dope dist- <br /> MZ <br /> ess the egnare of tb•eL•di the the rise-14 M. <br /> dope distanee-4MAtG ,ifoeissgEsglslaI�/..i4 X f4 <br /> s xlr6ita-saes-•ate-30p ae n.. <br /> WE IM U.S.A. <br /> • <br /> / • • Jar �, '' .` • <br />