5 AA Title Page Sec III - uen.org · PDF...
Transcript of 5 AA Title Page Sec III - uen.org · PDF...
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Secondary Mathematics III
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Secondary Mathematics III
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Secondary Mathematics III
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A = 12 absinC *"-5*,-%*:$,*7,#*
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A = 12 ac sinB *8,/*#$%*"/%"*8,/&63"<**O,#%*#$"#*8,/*#$')*#$%&#&'(#/'"-73%A*2,#$*
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sin40!
10=sinB15
!15sin40!
10= sinB ! sin"1 15
10 sin40!( ) = B = 74.6! *
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Secondary Mathematics III
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102 = 152 + c 2 ! 2(15)(c)(cos40!)cos40! = 0.766)100 = 225 + c 2 ! 22.98c0 = c 2 ! 22.98c +125
22.98 ± 22.982 ! 4 "1"1252 "1
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Secondary Mathematics III
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48
Secondary Mathematics III