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Câu 93. }0'[O%#N>OW.(W2%2)4(?@RO
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Câu 95. W0=V@.(f%3"g3
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Câu 96. 4#N>O'>Oj=@1!Cu.V=@21)fN_
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Câu 99. 4 #N >O 1" 8 = % l '[ ? @ R O< B
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Câu 100. *=V#N>O1"8%29"?@.VO<BE3F2HkHJ"
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Câu 101. *= V #N >O % ? @ R O< B
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O<B','>'(D
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Câu 105. *= V 1" 8 ? @ ', '> R O< B
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) F2 JF J6 ) F2 7 2JF J
A B
u c t mm u c t mm
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u t cm
π
π
= −
÷
3 3 F J
9
M
u t cm
π
π
= +
÷
F "2 9 Ju x t
π π
= − +
F "2 9 Ju x t
π π
= − +
π
λ
b2π
π
λ
?
π
λ
?
π
λ
?
π
λ
?
2
π
+π
π
π
Câu 275. <'0=O<0.V./-7)A<Bl@T=
O<0@'(E F6J)A<BC@K.(%T#$
23'(D
1) 8)
:) ) ;)
Câu 276. ?!@(?(@,W?@.V,-b%M#$c2245@N2 45.(RO<
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'?@'rO.VW .V# ‰)*,-?@l>?!'(D
1)245 8)2945) :)245 ;)Z45
Câu 277. W0C'[.V./-0'(Z7"#$%&>'=NO'(9)
*,-l'(D
1)245 8)45 :)245)) ;)945
Câu 278. f=V?@.V,- 45)8N#$%&3>'=NO'( )X/
-0'(D
1)97 8) 7 :)Y7) ;)7
Câu 279. %NO='=3',Z.(#$%2
#0'("2)X/-0'(D
1)7) 8)27 :)97 ;) 7
Câu 280. <O<B?@C@'(E9F JF6J)C@'@
l'( )x@l@ NOR'(D
1)U ) 8) :)U2 ;)
Câu 281. W0C'[.VV"Z)A<B?@CT'(E )
A<B?@C%T@C3"9RO<0'(D
1) 8)
:) ) ;)
Câu 282. ?@0cWV.V./- 7)A<B?@C%W#$2
@'( )A<B?@CW'(D
1) 8)
:) ) ;)
π
JF
2
π
−π=
JF
2
π
+π=
JF
9
π
−π=
JF
9
π
+π=
2
J#2F
π
+=ϕ∆
∈
π
+
π
2
2 2 2±
π
−ω
2
2
π
−ω=
2
π
−ω=
2
π
+ω=
( )
π−ω=
1
π
+π=
1
W
π
−π=
1
W
π
−π=
2
1
W
π
+π=
1
W
π
+π=
Câu 283. T0=V)p=V.(%T#$):-
@O@,lTKBO?@l.(@'( )X/-0
.(V%M','>'(D
1)Z7.(2 8)7.(2)
:)7.(29 ;)937.(29
Câu 284. p,1l?!?(@(?@RO<a@^.V,-345)X/-0=?!
'(97)#$%&2@,?@>O'(D
1) 8)Z :)2 ;)9)
Câu 285. ‡WC.(V?@@0d.V,-245)*K2@1.(8=V
jK=O<0%'?@>O)*+./-0N./-
.(‘"g7@N7
1)"g37 8)"Z7) :)"Y7 ;)"Y37
Câu 286. f@CT?@RO<BE39 F6J)pK%T@Cg)8N
./-0'(7)|&T.(=@?@jO.Vh
1)2@ 8)@) :)9@ ;)3@
Câu 287. f@CT?@.V,-45)pK%T@C2)8N./-0'(
97)|&T.(=@?@>O.Vh
1)@ 8)9@) :)3@) ;) @
ĐÁP ÁN
3
3
π
−π=ϕ
π
