Page 251 - Math Grade 11 (Basic)

PROEUS DARA

d. cJ2+ 13{ + = 4 nfH15 (J2 + 13( + (J2- 13( =
ftrulH~iJ~ris'2~ (J2- 13)x &ftUlS - 4( J2- J3 )' + 1 = 0
1 "'
6ilb t = ( , I> 0 &ftUlS t = 2- J3 , t = 2 + J3 tltHSHo{§nm:flstHo x = ±2 '1
u ~
x
2
--r
t:
x) - 7 C ~ ) + 3 = o m~ r = ~ -r
7
7
7
rill. X= -J ,X= , t > o
6
u. n. x>O 9. X S 0 j:J, X S -2 W. X< 3 ~. X;?;- S cr. x > -1
1
3
3
12. ft. 27'·3!--x<~ hl13'iiJb153 '·3 "', 3 x+l-x<3 1 ' X<-]
2
2 !4. :oX :5 3 r;;9 3 ~ iil'i 2
"-««< n<
w. (0.2)' s 2s hl13'iiJru s·' s 5 rn2J x"" -2 w -" ";..j':! •uo'il'u- 3 :5 3 "'''\) xs3
x
2
1.)' _ (l)x (1)3 o 2
{f
ti. ( > ~ 4 hl13'iiJ ru 2 > 2 m 2J x < 3
2
14. brlbliffi~'i::flSHlru 65 m Utnfihlm'i::flSUSS 1995 t:Hlm '1
1 C:S 1 lJ 1 GV
15. umn~mbufilru13nllitl5S'i::flS!lt13 14426 tJrul~ '1
c;t 5"1 GV 1 6\1
1 9
5. n. X = 27 2. X = 4 ft. X = J ill. X = 2 ~. X = 3 ti. X = 2 M. X = 1 , X = 10
0. X = 5 rill. X= ±J24 m. x =
"'
6.11. x = 1 2. x;;,6 ft. xE ]0 , l[ U ]I, +co[ ill. x>3 ~- x>3 ti. "iix ti. x<3
0
7. ll, 89 ~ 8. 12342 1:1 Ma
1GV

un:tj~i ~

5. n. I tan a. + cot a. I 2. tan a. ft. I sin a.+ cosa.l ill. cot a.
6
4
7. n. 3n: 2. 4n: ft. 8n: ill. 4n: b. 3n: ti. 2n:
............__ ............__ 5
"" "
2
2
13. n. 13 = 12 +5 2 m13nmm = LPQR m.Jfnl::l 2. tanQPR = - 5 cosPRS =--
1 2 13

4
7. n. !6sin2xsin ~ 2. l ft. tan3a. ill. tan 2a.
A
. . A A cos2 A
9. n. smA = 2sm cos = --:---:4 = cos cosA = 0 = A = 90•
2 2 2
Sll1Z
11. tan A+ tanB = 2 tan-- = sm-- cos B cos · = Cl
A+ B
A)
. A B(
2 2
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