- UU Z-50
U- U
Uٷ { 緤
UU ڢU
U ̷ U 槰
U, U U
CU
1- U (1x6)
U
} U ߷
U U
U UU U ߷ UU
} S̷ 繰
() 跤U ٷ Kx+3y=-3 12x+ky=-k ٢
U U k
(i) 3 (ii) -3 (iii) 12 (iv) 6
() آ 4x U 4xy2 .. U
(i) 4 (ii) 4x (iii) 4xy (iv) 4xy2
() 跤U x2-4x+8=0 v̷ U
(i) -4 (ii) -8 (iii) -16 (iv) 4
()
10 ط U
(i) 13 (ii) 11 (iii)
12 (iv)10
(U) sin 15/ cos
15 U
(i) v3+1 (ii) v3-1
(iii) 2- v3 (iv) 2+ v3
() UU 500 L.
¢ U U
շ U U 7
U ¢ U U
U
(i) 507 L. (ii) 535
L. (iii) 465 L. (iv) 493 L.
2.
U (1x4)
() U 꿷
v U?
() SU
summation bc (b+c)
() x+1/x 鈷 繰
() O=II/3, Sin O-Cos O
3 - U (1x4)
() 5 ⢁ U 27 UU
⢁ U U
25 挈 U UU
⢁
() a,
b 跤U
5x2-7x+1=0 U
1/a+1/b 槰
() sin O+COS
(90 +O)+sin (180 -O)+ sin (180+O) 槰
() x2+2x U x3-4x ..
4- U (1x4)
() 跤U 3x2+5x+2=0 v̷ U 跤U
繰
() 緤 տ
1 U 1500 L. 5 U
500 L. U 18 U 800 L. 緤
緤 U U 緤 U y ?
() U 繰 U v 翋U U
() 2Cos215-1= Cos O O
5- U
U - (2x4)
() U x-2y=3 翰 բ , (i) x=-5 (ii) y=0
() ⢁ 6, 8, 11, 12, 2x-8, 2x+10, 35, 42 U 50 UU ܹ UU Uٷ ط
25 U x
() ِ UU 50 U 緢 20-40 60-80 U UU f1 U f2 UU UU
0-20
20-40 40-60 60-80 80-100
UU
17 f1 32 f2 19 =120
()
U U Uⷤ ܢ 3 UU
U
(U) a+b+c=90 h
tan a tan b+tan
b tanc+tan c tan a =1
6- U
U (2x4)
() v 20,000 L. c c
, 15, 000 L. c U
緤S 40000 L. UCU տ U U U
U 88 ̻ طU 緤 UU
طU UU տ 20 U ⷤ
Ϸ 12000 L.
U
() U -
x/(x-y)+y/(x+y)+2xy/(y2-x2)
() m 跤U ⷤ
-2 -5 U
() آ xy (x+y)+3xyz
ٹU
(U) h -
sin (a+b) sin (a-b)= sin2a-sin2b
7-
U - (4x2)
() 緤 U U a U b UU U
U U U S բ p U q U U U U U UU UU h 緤 U vab UU UU
() U h
16,000 L. U ٷ ߷
U 9 ߷ U ܻ U
U U
緤 L ٷ U ǸU
() ٻU ⢁ 1,60,000 1,40,000 UU ٷ
⢁ 32,000 U 25,000 UU M ٻU U
8-
U - (4x2)
() h -
cos 20.cos 40 cos 60 cos 80=1/16
() U
v(x/(1-x)) + v((1-x)/x)=17/4
() Ȥ U x3(y-z)+y3
(z-x)+z3(x-y)
ٹU
|
U
|
|
1. UȤ U UU U U U U UȤ U ڢU M UU
2.
SCU ܹ U U UU ؤU
3.
⢁ UU ڢU ܹ UUU U U
4.
5. UU
U U U
|
|
v,
|
