Trigonometry Study Notes: Advanced Topics

Chapter 4 part 2 1.) arccos (FZ) x 2.)arcsin (-V2) sin 533 x = AH = 3.)arctan (5) = tan THE 3=6 4.)sin (cos'(") sh 3 19 c-17+b2=32 \ +b2 =9 58 sin = 3 b=58 5.)cot [sin'((s) 52-22=a2 6.) y = tan (x+3) 5 2 a=521 left asy 35 righ agy 30 V21 x+ -xV 2 (521) 2521 X + 2 X=57 5x tan= S21 (521) = 21 X K/O 21 cot= 2 7. y=2cos a (x 2) So 28 6 27 about y=3 amp=2 Per= =27 X + 1 2N =0 (2) X y x - 12.25 8. y=CSC 3x 2X 2 4 5 amp=1 2x per X y 5 3 3x= O 3x=27 00 3 I 23 4x X=0 X= 6 KIV I I ZX 4 -3 + -S ti FU :

Chapter 4 Part 2 (Day 2) 1.) P and ... y sin65-30 COS65-30 tan O'=10+x Y 30sin65=y 30cos65=X o 40 165 x 10 tan 0'=30sin = tano =1.19 90-50.17=0 10+30cas65 0'=50.17 0=39.83 2.) 80 selevation = tan 0 3 30 80 tang-2.667 tan' (2.667) = 69.44 30 3.) GOOD d y 25 40 tan 25"=2000 tan 40 - 2000 a=2000 y=2000 1000 tan 25 tan 40° & as d=4289.01 y=2383.51 y x d d-y=x : 4289.01-2383.51 (=1905.5ft) 4.) X A 40 cos 30= 80 tan 30= 30 A x=40 B=80cos30 1=40tan30 68 COS60 B + x=80 8=69.28 A=23.09 390 60° height of building B= B-A 40ft 69.28-23.09 check 46.19Ft 802-402-B2 B==4800 B=69.28