2008 june 12
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1) The document contains calculations to find the measure of an angle (θ) using trigonometric functions like sine, cosine, and tangent. 2) It is determined that θ = 31.5° based on the given information that sinθ = 0.5 and the reference angle is 60°. 3) A second calculation finds the measure of another angle (K) to be 26° using the information that θ = 31.5° and the angles add up to 90°.
2008 june 12
- 1. l t_- I p) tb (l) frSr= 6s +es = Dto ts0 - t Iz- 6r, inWw *flLu [tl') sin 4ts = s,io rol s6G Sira Rfs = Sin /o l X 56 -ls ,', niS =sin-r /sirrtolxs6l =47,1u 7s ) 0trl Angt, TKs = lgo _ l,l _47,1 = 3l,qo inltvlL,r ,'rgb + 'rw'M tlz -31'? - 80'l' l8o -So.l = Q?,lu inkn)* oil{la 350-qq'q:26o,io ",Bl,uwg of K W (;t 26oo
- 2. c (i) Sw d,,aXran, fr,^ Nnt X [ir ) fnx $ onu}hf -anghl wb ftWb {nx I's 60'l o .i Sin -= L t"+ Sin TD,l = TX 7s ' ,' 71. i 7sx siYz K0'l = 73,?krn